MCHK-Racing

Sweden

MACHINE AND EQUIMENT RULES

These rules apply from July 1997

Revised rules at rules-meeting 2001-01-26

Revised rules at rules-meeting 2002-02-02

Revised/additional rules at the annual meeting 2002.

Revised/additional rules at rules-meeting 2003-01-18.

Revised/additional rules at rules-meeting 2004.

Revised rules at rules-meeting 2006. Class 2 B 50 cc regulations added

Revised rules for class 7A and 7B and additions for MCS 8 C “Forgotten Era”, at the Nordic meeting in Copenhagen September 2006, Rules-meeting 2007 and Nordic Meeting in Helsinki October 2007.

These rules and subdivision are sanctioned by the UEM and applies for the UEM Vintage cup

Information regarding subdivision and general rules be directed to Lennart Olander tel.: +46(0)18-38 70 75.

e-mail: mchk-r@mchk-racing.org

Information regarding technical regulations for the various machine classes to be directed to the members of the “Racing Section Machine Committee”, listed below.

Solo:

Per Anders Magnusson tel.:+46(0)500-470017 (convenors)

Christer Hjertner….Tel.: +46(9)023-32058. <48, <175 cc, 250 cc

Mikael Eriksson Tel: +46(0)8-358417.  350 cc, 500 cc, 750 cc

Sidecars:

Marcus Andersson tel.: +46(0)733-819850

Johan Lundqvist  Tel: 0226-42084

 

 

 

Contains.

1. General rules for speed competions, showevent and Trackmeetings..

2. Machinerules for chute hits and parade run

3. Machinerules for speed competition, sunbathing machines 1948 - 1972. (period 1 and 2) with speciallrules for class 1<48 and class 2B 50 cc.

4.1. Machinerules for speed competition, sidecars.Klass 8 A+B. up to 1972.

4.2. Machinerules for speed competition, sidecars.Klass 8 C “Forgotten Era” 73-83. Applies fr.o.m. 2007

5. Machinerules for the class MC period 3 - 73 t.o.m. - 79. (Forgotten Era) revised sept. 2006.

6. Machinerules for class 7 C FORMULA 80-87   Uppdate october 2007

 

1. General rules for Classic Road-Racing, Competition, Parading and Track meetings.

 * see SVEMO’s (Sweden’s national motorcycle racing federation) Competition Rules.

1.0. Generally: Machines are to be factory racers, production racers or machines built to resemble racers from the actual period.

Clarification of point 1.0.: A machine in the class <48 is to look like a racer from before 1948. A machine from the 50’s is to look like a racer from the 50’s. A machine from the 60’s is to look like a racer from the 60’s. A machine for the class 7 “Forgotten Era” through - 79 is to look like a racer from the period 1973-1979. Machines with appearance that resemble a certain period but with additional newer parts cannot classify for the later period and will thus not be approved. Note, it is the owner’s responsibility to prove and to document the availability of the machine and its equipment’s within the said period.

The year of manufacture of the motorcycle shall primarily determine which class the machine shall belong to. A motorcycle that already fits in to a certain class should not be changed in order to fit in to another class. This is especially important for production racers and factory racers because of their historical value. It is allowed to use newly manufactured frames to old specifications and to modify OEM produced frames. It is allowed to combine period frames and engines even though the combination is not proved to have existed.

The machine shall be prepared to a high standard with regard to safety and appearance, to achieve the machine licence. If the machine is regarded not to meet an accepted standard, the machine licence will not be issued or an existing licence may be recalled until an acceptable standard can be proved.

Advice: If you are uncertain on how to understand the rules please contact the “Machine committee” for advice before buying, constructing or modifying your machine.

Note! At speed competitions also the SVEMO’s competition rules shall apply. The details below must be fulfilled. Equipment like helmet, leather suit and so on must be inspected and approved in the scrutineering.

1.1. To participate in speed competition only competition licence is required. For parading, run in connection with a competition event, an ordinary street rider licence is required.

1.2. Helmet: To be approved in accordance with recognised Scandinavian or European standard. “Pudding basin” type helmet will not be approved. Helmets made from polycarbonate, lexan or similar material shall not be painted. The helmet shall be faultless without damage. The scrutinizer shall disapprove (or even confiscate for the event) helmets that do not fulfil the requirements. Helmets with flip-up front (type BMW) are not allowed.

1.3. Leather suit: One-piece or two-piece leathers can be used. One-piece leathers are recommended. The suit shall be of good quality. Back protector must be used.

1.4. Boots: Are to be of suitable type for motorcycle riding. Moto cross boots are not to be used.

1.5. Gloves: Only leather gloves will be approved.

 

50 ccm

10

1.6. Number plates: 230x280 mm,

<175 ccm, black bottom, white figures.

10

1 on the front of the machine and one on each side.

250 ccm, green bottom, white figures. Also Forgotten Ea>250 ccm

10

 

350 ccm, the blue bottom, white figures

10

The colours are to be as listed in the table:

500 ccm, yellow bottom, black figures

10

 

500 - 750 ccm, white bottom, black figures

10

 

Forgotten Era >250 ccm, red bottom, white figures.

10

 

Side cars, white bottom, black figures

10


The organizer of a competition event may decide on other colours. This shall then be stated in the supplementary regulations.

1.7. Appearance: The machines shall be painted in a pattern typical for the time frame. That means no lightning or graffiti type painting. Decals that were unknown within the period should not be used. Decals from sponsors are accepted.

1.8. Oil plugs and hoses: Oil plugs or bolts that may cause oil leakage if loosening is to be safety wired to a solid part of the motor or gear box (not to an exhaust pipe or other parts prone to vibration). The safety wire shall be annealed stainless steel, minimum Ø 0.7 mm. Copper wire cannot be used. External oil carrying hoses shall have threaded fittings that shall be secured. If fittings cannot be used, safety wired jubilee clips that shall be secured to the motor, oil filter or oil cooler, must be used. (Applies from 2002-01-01).

1.9. Machines shall be prepared for racing. Side stand and start lever shall be removed.

 

1.10. A guard must be fitted in such a way as to prevent trapping between the lower drive chain run and the final drive sprocket at the rear wheel. See picture

 

1.11 Other: Definition of a machine’s year of manufacture: Year of manufacture is regarded as the latest year of production for motor or frame. If important items (i.e. wheels, front fork etc.) have been modernized at a later stage, the year of the modernization shall be regarded as the manufacturing year. For instance: A machine manufactured in 1934 that has been modernized in the 1950’s with plunger rear suspension and telescopic front fork shall be regarded as a machine from the 1950’s. The year of manufacture for a newly constructed copy is to be regarded as the same year as the original machine.

2. Machine regulations for track meetings and parading. Membership in MCHK-Racing is obligatory. A rider’s licence for at least parading is required for participating in track meetings and parading.

For parading organized together with competitions or track meetings, rider’s cource and licence for competition or parading is required (valid for 2008 onwards).

2.1. Type and age: Participating machines must be of racing type (see § 1.0), comply with the time frame the machine belongs to and not be newer than 1983 model. For track meetings also factory racers and production racers with rolling 15 year age limit that qualifies for class 7C “Formula 80 – 87” and Super Mono machines are allowed. The rider must be member of MCHK-Racing.

For parade, the machines are divided in Parade 1 (real racer and exclusive and exceptional machines) or parade 2 (ordinary and modified ordinary machines). The category Parade 1 or Parade 2 must be stated on the cycle licence application. For parading, the machines shall be carefully prepared and comply with § 1.0.

2.2. Cycle licence: Cycle licence is required for parading, but not for track meetings.

2.3. Frame, swing arm: Original, replica or newly manufactured frames with period look is allowed. There are no restrictions to the suspension as long as it is typical for the period. Centrally located suspension units are only allowed on machines that originally were constructed that way.

2.4. Front fork: The front fork shall not be of newer type or construction than used within the period. Maximum allowed diameter for the fork stanchions are 35 mm. For machines originally equipped with larger diameter stanchions, this must be proved.

2.5. * Steering: Machines within period 1, 2 and 3 (1948-1972-1983) shall have clip-on type handlebars.

2.6. Wheels: The wheels shall not be of newer type or construction than used within the period. Rims shall be made from aluminium and be of valanced or non-valanced type (valid for 2002 onwards).

2.7. Brakes: The brakes shall not be of newer type or construction than used within the period.

2.8. Tyres, inner tubes: Sizes shall be as close to standard sizes for the period as possible. Tyres must be in good shape. Threaded tyres shall have at least 2.5 mm thread depth. Valve should be of short model. Metal cap with gasket shall be used.

2.9. Suspension units: There are no restrictions to the suspension as long as it is typical for the period. Rear suspension units with external reservoirs are only permitted on machines that originally were equipped with that type of units.

2.10. Tank, seat and fairing: Shall be of type and model that was used within the period. The machine does not need to be fitted with a fairing, but must in that case be fitted with front fender. Fuel tank of aluminium or plastic shall contain foam type fire retardant material.

2.11. Number plates: See §1.6.

2.12. Motor: The motor must have been manufactured within the time limit for the class or the look of the motor must be identical to a motor that was available within the period. There are no restrictions to tuning.

2.13 Oil hoses, drain plugs and filling plugs: Oil plugs or bolts that may cause oil leakage if loosening is to be safety wired to a solid part of the motor or gear box (not to an exhaust pipe or other parts prone to vibration). The safety wire shall be annealed stainless steel, minimum Ø 0.7 mm. Copper wire cannot be used. External oil carrying hoses shall have threaded fittings that shall be secured. If fittings cannot be used, safety wired jubilee clips that shall be secured to the motor, oil filter or oil cooler, must be used. (Applies from 2002-01-01).

2.14. * Oil catch tank: Vents from motor/gear box shall be routed to catch tanks.

2.15. Carburettor: The look must be typical for the period otherwise there are no restrictions.

2.16. Ignition, emergency stop: There is no restriction to the ignition system except that electronic ignition system fitted at a later stage shall be concealed. The machine shall be equipped with some sort of emergency stop switch that shall be easily accessible at or adjacent to the handlebar.

2.17. Gearbox: The look must be typical for the period otherwise there are no restrictions.

2.18. Transmission: There is no restriction to the transmission. If belt drive is used, this must be concealed. Chain link with clip shall be secured with locking wire or similarly secured.

2.19. Exhaust: Applies for all riding. The machine must be equipped with appropriate means of silencing: Maximum permitted noise level is 102 dB.

2.20. Levers, handles, instruments: No restriction, but the throttle must return to closed position by it self.

2.21. Brake wire: Front brake wire minimum Ø 1.75 mm, Rear brake wire minimum Ø 2.5 mm. Nipples must be soldered, no screw nipples allowed.

2.22. Foot rests: Diameter of the foot rest shall at least be 16 mm. The ends shall be rounded and have a radius of least 8 mm. Hinged foot rests shall be self returning. Solid mounted foot rests shall have end plugs of plastic, aluminium or similar material. According to * SVEMO 3.1.5.

3. Machine regulations for Classic Road-Racing (competition), solo machines 1948 - 1972. (Period 1 and 2)

(Special regulations for class 1 machines <48)

(Special regulations for class 2 B 50 cc)

3.1. Type and age: The machine shall be of racing type and comply with machines within the period (see §1.0). The machine shall have been available on the European market before or during the 1967 season for 2-strokes and 1972 for 4-strokes. A machine produced after these time limits are also eligible provided no change or updating has been done. If the organizer of the meeting regards it beneficial, the post war class can be divided in period 1 (produced until December 31st 1963) and period 2 (produced from January 1st 1964 until 1967 or 1972 as described above).

Machines with 50 ccm cylinder volume shall have been available on the European market before or during the 1972 season regardless 2- or 4-stroke.

For class 5 (500 ccm) only 4-stroke machines are eligible.

The material for rims and handlebar is not restricted for machines produced between 1948 and 1955. Machines from this period should also be permitted to have a look more in line with a street machine. For modification or construction of machines as described above, the following rules shall be obeyed:

3.2 Cycle licence: To take part in a competition event a cycle licence is required. A cycle licence is also required for competitors from other Scandinavian countries. If no cycle licence can be presented, the machine shall not be allowed to take part in the competition.

3.3. Frame and swinging arm: Shall be made from circular tubing that was used for road racing within the period. The swinging arm shall only have one tube each side. It is allowed to use newly manufactured frames to old specifications and to modify OEM produced frames. It is allowed to combine period frames and engines even though the combination is not proved to have existed.

3.4. Front fork: The front fork shall not be of newer type or construction than used within the period. Mechanical or hydraulic anti dive is not allowed, nor is bracing between the lower fork legs. Maximum allowed diameter for the fork stanchions are 35 mm. For machines originally equipped with larger diameter stanchions, this must be proved.

3.5. * Steering: Machines shall have clip-on type handlebars. This is not applicable for machines produced between 1948 and 1955. See SVEMO technical regulations.

3.6. Wheels: Rims shall be made from aluminium and be of valanced or non-valanced type. This is not applicable for machines produced between 1948 and 1955. The wheels shall be spoked and have a diameter of at least 18”. Maximum rim width is WM 3 front and rear for classes up to and including 500 ccm. For larger ccm capacity classes, there is no restriction to rim width.

3.7. Brakes: The brakes shall not be of newer type or construction than used within the period. Classes up to and including 500 ccm may use a single disc (Ø300 mm) front brake if not double discs were originally fitted to the machine. Drum brakes should be preferred. For larger than 500 ccm capacity classes double disc brakes of type and construction commercially available within the period can be used. The discs shall not be drilled, ventilated, slotted or floating. Callipers shall be of type that was available during the period and shall not have more than 2 pistons. 2-strokes shall have drum brakes. For 4-strokes drum brakes may be replaced with disc brakes (front and back).

Examples of eligible 2-piston brake callipers:

  1. Brembo (the black calliper as fitted to Moto Guzzi T3)
  2. Yamaha (the cast iron type as fitted to the Yamaha XS 650)
  3. Honda (as fitted to the first CB 750)
  4. Lockheed
  5. Dunstall (integrated in the fork legs)

3.8. Tyres, inner tubes: Slick tyres or slick tyres with cut threads are not allowed. For larger than 500 ccm capacity classes tyre width is limited to 110 mm front and 130 mm rear. Modern type rain tyres are not allowed. Tyres shall be used as they left the manufacturer. Additional threads shall not be cut. Tyre heaters are prohibited. Air valve of short type is recommended. Valve caps are to be of metal and equipped with a gasket.

3.9. Suspension units: Units with external reservoirs are prohibited. Centralised suspension units are only allowed if the machine was so equipped within the period.

3.10. Tank, seat and fairing: Shall be of type and model that was used within the period. Fairing and seat shall not be of modern wedge type design. The machine does not need to be fitted with a fairing, but must in that case be fitted with front fender. Fuel tank of aluminium or plastic shall contain foam type fire retardant material.

3.11. Number plates: See §1.6.

3.12. Motor: The crank case, cylinder and cylinder head must be period parts. There are no tuning restrictions. Modification of original parts and the use of period after marked parts are allowed. Boring of the cylinder to the engine manufacturer’s standard over-sizes is allowed even though this may cause the cylinder volume to exceed the upper limit for the class. Triumph T140, Norton 850 crank cases and other crank cases manufactured after -67/72 are allowed provided they are identical to those manufactured in 67/72. Norton 850 cylinders are allowed, but the cylinder volume shall not exceed 750 ccm. The bore and stroke of a motor may be changed for the machine to be used in another cylinder volume class. The look of the motor shall not be changed.

3.13 Oil hoses, drain plugs and filling plugs: Oil plugs or bolts that may cause oil leakage if loosening is to be safety wired to a solid part of the motor or gear box (not to an exhaust pipe or other parts prone to vibration). The safety wire shall be annealed stainless steel, minimum Ø 0.7 mm. Copper wire cannot be used. External oil carrying hoses shall have threaded fittings that shall be secured. If fittings cannot be used, safety wired jubilee clips that shall be secured to the motor, oil filter or oil cooler, must be used. (Applies from 2002-01-01).

3.14. * Oil catch tank: Vents from motor/gear box shall be routed to catch tanks.

3.15. Carburettor: Carburettors with “power jet”, flat slide or acceleration pump are not allowed. Neither are modern smooth bore carburettors, except Amal MK 2. Fuel injection is prohibited.

3.16. Ignition, emergency stop: There is no restriction to the ignition system except that electronic ignition system fitted at a later stage shall be concealed. The machine shall be equipped with some sort of emergency stop switch that shall be easily accessible at or adjacent to the handlebar.

3.17. Gearbox: The type and model must be as was used during the period. There are no restrictions to gear ratios and number of speeds.

3.18. Transmission: There is no restriction to the transmission. If belt drive is used, this must be concealed. Chain link with clip shall be secured with locking wire or similarly secured.

3.19. Exhaust, silencing: Applies for all riding. The machine must be equipped with appropriate means of silencing: Maximum permitted noise level is 102 dB (A).

3.20. Levers, handles, instruments: No restriction, but the throttle must return to closed position by it self.

3.21. Brake wire: Front brake wire minimum Ø 1.75 mm, Rear brake wire minimum Ø 2.5 mm. Nipples must be soldered, no screw nipples allowed.

3.22. Replicas: The look of a replica shall mainly comply with the original machine.

3.23. Others: The machine shall be prepared for competition. Side stand and start lever shall be removed.

Additional regulations (3) for class 1 until 1948.

3.1. Type and age: The machine shall be of racing type and comply with machines from within the period (see §1.0). The machine shall have competed in the actual class. It is for the rider/owner to prove this.

3.3. Frame and swinging arm: The design shall be from before 1948, with no exception.

3.4. Front fork: Telescopic front fork is allowed, provided the original construction was so equipped.

3.5. Steering: Clip-on type handlebars not allowed.

3.6. Wheels: Maximum rim width is WM 2 front and WM 3 rear. Valanced steel and aluminium rims are allowed. The diameter shall be at least 19” if not the original construction was different.

3.7. Brakes: Only half-width drum brakes with maximum 7” diameter, front and rear, is allowed.

3.10. Tank, seat and fairing: Fuel tank shall be of period look and construction. Plastic fuel tank is not allowed. Fairing is not allowed. The machine may be equipped with fly screen. The seat shall be single seat of leather or rubber and a seat pad may be fitted to the rear fender. Double seat is not allowed. The machine shall be equipped with front and rear fenders of period look and construction. Plastic fenders are not allowed.

3.12. Motor: All visible parts must be recognized as period parts.

3.15. Carburettor: Carburettors produced through 1960 i.e. Amal Monoblock is allowed.

3.17. Gear box: The gear box must be of look and construction as manufactured before 1948.

3.18. Transmission: Belt drive may be allowed provided it is fully concealed behind period covers.

3.20. Clutch lever, brake lever and throttle grip shall be with period look and construction.

3.23. Others: Oil absorbing material shall be attached under the motor and gear box. The appearance of the machine shall comply with the pre 1948 period.

Additional regulations for road racing solo machines 1948 – 1972, class 2B, 50 ccm.

1.0 Generally a machine will be eligible if it has been raced in a national or international 50ccm event during the 50 ccm era, provided the appearance and specification is unchanged. A replica of such a machine may also be allowed, provided the main components (frame, motor, front fork, fuel tank, seat, fairing, wheels and brakes) comply with the original.

2.0 If the machine do not comply with the requirements above, the owner should contact the Machine Committee or the class representative before commence building the machine.

2.1 Frame: The frame type shall be of type back bone, pressed steel plate or made from circular tubing.

2.2 Wheels: The wheels shall be spoked 17” or 18” diameter with aluminium rims.

2.3. Tyres: Tyres shall be threaded. Slick tyres, slick tyres with cut threads or rain tyres are not allowed.

2.4. Front fork: Maximum allowed diameter for the fork stanchions are 30 mm. Anti dive or upside down forks are not allowed.

2.5. Rear swing arm: The swing arm shall be manufactured from circular or rectangular tubing and equipped with 2 suspension units. Truss type bracing is not allowed. Neither is linkage for the suspension units.

2.6 Motor: All 2- and 4-stroke motors sold in Europe through 1972 is allowed. Also all motors that have been raced in national or international 50ccm events through 1972 are allowed. The main parts of the motor (cylinder head, cylinder and crankcase) shall comply with period parts. Side covers may be modified or removed. Conversion to rotary inlet valve and to dry clutch is allowed. There are no tuning restrictions. Parts from different manufacturers may be used. The gear box is limited to 6 speeds (except for replicas described in §1.0). Manually operated over drive is allowed.

2.7 Carburettor: Shall have cylindrical throttle. Otherwise there are no restrictions.

2.8 Fairing, seat, fuel tank, levers and handlebars: Shall be of type and model that was used within the period. Decals and painting shall be typical for the period. Foot pegs etc. shall be in accordance with SVEMO’s technical regulations.

2.9 Ignition: There is no restriction to the ignition system.

2.10 Brakes: The machine shall be equipped with drum brakes with period look.

2.11 Silencing: Silencing shall be in accordance with SVEMO’s technical regulations (Applies to all machines, also those listed in §1.0).

2.12 Exhaust system: There is no restriction to the exhaust system.

2.13 Fuel: Only commercially available petrol is allowed (Applies to all machines, also those listed in §1.0).

2.14 Others: The machine shall be prepared to a high standard down to details and painting, and have a period look.

4. Machine regulations for Classic Road-Racing class 8 A+B sidecars and 4:2 regulations for class 8 C

4.1. Type and age: The machine shall be of racing type with side car. The appearance and construction shall resemble the period through 1972. Replica machines are allowed.

Class A: Wheels size 10" or 12" front and rear. Maximum rim width is 5,5". Maximum cylinder volume is 1000 ccm, 2-stroke or 4-stroke. No limitation to number of cylinders.

Class B: Wheels size 16" or larger, front and rear. Maximum rim width is WM 4. Maximum cylinder volume is 750 ccm. The size of the side car wheel may be different.

4.2 Cycle licence: To take part in a competition event a cycle licence is required. A cycle licence is also required for competitors from other Scandinavian countries. If no cycle licence can be presented, the machine shall not be allowed to take part in the competition.

4.3. Frame: Side cars not integrated with the motorcycle shall have at least 4 attachment points to the motor cycle. No movement is accepted in the attachment points. Dimensions for the machine: Maximum width included exhaust is 1700 mm. Minimum unloaded ground clearance is 60 mm.

4.4. Front fork: The front fork shall be of type and construction that was used within the period.

4.5. * Steering: See SVEMO’s technical regulations.

4.6. Wheels and rims: The wheels shall have period look. For dimensions, see § 4.1.

4.7. Brakes: The brakes shall not be of newer type or construction than used within the period. There shall be two independent systems working on at least two wheels. The brake discs shall not be drilled, ventilated or floating. Callipers shall be of type that was available during the period and shall not have more than 2 pistons.

4.8. Tyres, inner tubes: Threaded tyres shall be used and have threads at least 1 mm deep. Slick tyres or slick tyres with cut threads are not allowed. Tyre heaters are prohibited. Air valve of short type is recommended. Valve caps are to be of metal and equipped with a gasket.

4.9. Suspension units: Units with external reservoirs are prohibited. Centralised suspension units are only allowed if the machine was so equipped within the period.

4.10. Tank, seat and fairing: Fuel and oil tank shall be fixed to the machine. Fuel and oil hoses shall be of proper design. Oil hose attachment to the motor shall be as original or with pressed hydraulic fittings. Jubilee clips are not allowed.

4.11. Number plates: See §1.6.

4.12. Motor: The motor shall have period look. There are no tuning restrictions. For class A maximum cylinder volume is 1000 ccm. For class B Maximum cylinder volume is 750 ccm. 2-stroke or 4-stroke motors manufactured through 1972 may be used. The motor must have been available in Europe in the period.

4.13 Oil hoses, drain and filling plugs: All oil plugs, for filling and draining, on motor, gear box and transmission shall be safety wired. External oil carrying hoses shall have threaded fittings that shall be secured. If fittings cannot be used, safety wired jubilee clips that shall be secured to the motor, oil filter or oil cooler, must be used. (Applies from 2002-01-01).

4.14. * Oil catch tank: Vents from motor/gear box shall be routed to catch tanks.

4.15. Carburettor: Carburettors with “power jet”, flat slide or acceleration pump are not allowed. Neither are modern smooth bore carburettors, except Amal MK 2. Fuel injection is prohibited.

4.16. Ignition, emergency stop: The machine shall be equipped with a switch that breaks the ignition and possible fuel pump if the rider should fall off. It is recommended that the switch is located on the handlebar and attached to the rider’s arm with a string.

4.17. Gearbox: The type and model must be as was used during the period. There are no restrictions to gear ratios and number of speeds.

4.18. Transmission: The transmission must have protection to prevent damage to rider and passenger. Protection is also required for propeller shaft. The machine must have rear wheel drive only.

4.19. Exhaust, silencing: Exhaust outlet shall be routed rear wards. Bolts and nuts fastening the system shall be secured. The machine must be equipped with appropriate means of silencing: Maximum permitted noise level is 102 dB (A).

4.20. Levers, handles, instruments: No restriction, but the throttle must return to closed position by it self. Exception to this is Dell’Orto desmodromic system or equal systems.

4.21. Brake wire: Front brake wire minimum Ø 1.75 mm, Rear brake wire minimum Ø 2.5 mm. Nipples must be soldered, no screw nipples allowed.

4.22. Replicas: The look of a replica shall mainly comply with the original machine.

4.23. Others: The rear wheel shall be protected to prevent damage to the passenger. The sidecar shall be constructed to allow the passenger to lean out in front of the sidecar wheel only. The machine shall leave two tracks on the ground when running straight.

4.2. Machine regulations for Classic Road-Racing class 8 C sidecars “Forgotten Era” 1973 - 1983 (currently not included in the EUM Vintage cup)

4.2.1. Type and age: The sidecar racing machine shall have appearance and construction that resemble the period 1973 – 1983, chassis wise. Replica machines are allowed. Motors manufactured through 1987 may be used (see § 4.2.10). The rider shall be seated behind the motor. Long wheel base machines with the rider in front of the motor are not allowed.

4.2.2. Class C or Forgotten Era: Maximum wheels size is 13" for all wheels.

4.2.3. Frame: The frame shall be constructed for racing. Minimum unloaded ground clearance is 60 mm. Track width 1100 mm between centre lines. Wheel base 1600mm.

4.2.4. Front fork: The front fork shall be of type and construction that was used within the period.

4.2.5. Wheels: Maximum rim size is 13". The rim shall be of period look and construction. Maximum rim width is 8” front and 10” rear.

4.2.5. Wheels: Maximum rim size is 13". The rim shall be of period look and construction. Maximum rim width is 8” front and 10” rear.

4.2.6. Tyres: Maximum tyre size is 13". Slick or threaded tyres may be used. Threads shall be at least 1 mm deep. Slick tyres with cut threads are not allowed. Valve caps are to be of metal and equipped with a gasket.

4.2.7. Brakes: The brakes shall be of period type and construction. There shall be two independent systems working on at least two wheels. Maximum brake disk diameter is 300 mm. Callipers shall be of type that was available during the period and shall not have more than 2 pistons. Single acting callipers with 2 brake pistons are not allowed.

4.2.8. Suspension units: Units shall be of period type and model.

4.2.9. Fairing, tank and seat: The fairing shall cover the entire machine, also the rear wheel. Fuel and oil tank shall be fixed to the machine. Oil hose fittings shall be purpose made with pressed on threaded connections. Jubilee clips are not allowed. Fuel tank shall contain tank foam.

4.2.10. Motor: The motor shall have period look. There are no tuning restrictions. Maximum cylinder volume is 1000 ccm for 4-strokes and 750 ccm for 2-strokes. The motor must have been available in Europe through the 1972 season. Boring of the cylinder to the engine manufacturer’s standard over-sizes is allowed.

There is a dispensation through 2008 for motors not meeting the requirements described above.

4.2.11. Oil tray: There shall be a tray covering the whole under side of the motor, constructed to hold, in case of an engine breakdown, at least the total oil capacity used in the engine. The lower edge of openings in the tray must be positioned at least 50 mm above the bottom of the tray. Vents from motor/gear box shall be routed to catch tanks.

4.2.12 Oil hoses, drain and filling plugs: All oil plugs, for filling and draining, on motor, gear box and transmission shall be safety wired. The safety wire shall be annealed stainless steel, minimum Ø 0.7 mm.

4.2.13. Carburettor: There is no restriction to carburettors. Fuel injection is prohibited.

4.2.14. Ignition, emergency stop: The machine shall be equipped with a switch that breaks the ignition and possible fuel pump if the rider should fall off. It is recommended that the switch is located on the handlebar and attached to the rider’s arm with a string.

4.2.15. Gearbox: The type and model must be as was used during the period. There are no restrictions to gear ratios and number of speeds. No external electric means is allowed.

4.2.16. Transmission: The transmission must have protection to prevent damage to rider and passenger. Protection is also required for propeller shaft. The machine must have rear wheel drive only. Chain link with clip shall be secured with locking wire or similarly secured.

4.2.17. Exhaust, silencing: Exhaust outlet shall be routed rear wards or bias rear wards. Bolts and nuts fastening the system shall be secured. The machine must be equipped with appropriate means of silencing: Maximum permitted noise level is 102 dB (A).

4.2.18 Levers, handles, instruments: No restriction, but the throttle must return to closed position by it self.

4.2.19. Brake lines: Brake lines shall be steel braided hoses.

4.2.20. Replicas: The look of a replica shall mainly comply with the original machine.

4.2.21. Cycle licence: To take part in a competition event a cycle licence is required. A cycle licence is also required for competitors from other Scandinavian countries. If no cycle licence can be presented, the machine shall not be allowed to take part in the competition.

4.2.22. Others: The sidecar shall be constructed to allow the passenger to lean out behind the sidecar wheel only. The machine shall leave two tracks on the ground when running straight. The machine shall be prepared to a high standard down to details and painting.

5. Machine Regulations for Classic Road-Racing class 7A + 7B Period 3 through 1979. (Forgotten Era)

The class is divided in: Class A, machines with cylinder volume >250, maximum 1300ccm and class B, machines with cylinder volume <250 ccm

5.1. Type and age: The machines shall be factory racers, production racers or constructed to resemble racing machines from the actual period (see §1.0), and shall have been available during the 1979 racing season. Exceptions to this are the Yamaha TZ 250 F and G, the Yamaha TZ 350 H and the Suzuki RG 500 through 1981 if the anti dive has been removed (decision taken 2004).

Replicas of machines described are also eligible. Machines according to the national Swedish Super Bike regulations (standard road machines) until 1980 are not allowed. The year of manufacture shall mainly decide what class the machine shall belong to. A machine suitable for a certain class should not be altered to suit another class. This is especially important for factory and production racers because their historic value.

For modification of above mentioned machines and construction of new machines, the following shall apply.

5.2 Cycle licence: For parading or competition a cycle licence is required.

5.3. Frame and swinging arm: The look and construction shall be as used during the period.

5.4. Front fork: The front fork shall be of design and construction that was used within the period. Mechanical or hydraulic anti dive is not allowed.

5.5. * Steering: See SVEMO technical regulations.

5.6. Wheels: The wheels shall be of design and construction that was used within the period with minimum 18” diameter. Spoked wheels shall have valanced or non-valanced aluminium rims. (applicable from January 1st 2002)

5.7. Brakes: The brakes shall not be of newer type or construction than used within the period. The discs shall not be ventilated or floating. Callipers shall be of type that was available during the period and shall not have more than 2 pistons. Single acting callipers with 2 pistons are not allowed.

Note that half floating discs of type ISR are allowed. Drilled and slotted brake discs are allowed.

5.8. Tyres, inner tubes: Slick tyres are allowed. Air valve of short type is recommended. Valve caps are to be of metal and equipped with a gasket.

5.9. Suspension units: Linkage for the suspension system is not allowed.

5.10. Tank, seat and fairing: Shall be of type and model that was used within the period. Machines shall be equipped with fairing.

5.11. Number plates: See §1.6.

5.12. Motor: The crank case, cylinder and cylinder head must be period parts. There are no tuning restrictions. Modification of original parts and the use of period after marked parts are allowed. Boring of the cylinder to the engine manufacturer’s standard over-sizes is allowed even though this may cause the cylinder volume to exceed the upper limit for the class. Fuel injection is not allowed.

5.13 Oil hoses, drain plugs and filling plugs: Oil plugs or bolts that may cause oil leakage if loosening is to be safety wired to a solid part of the motor or gear box (not to an exhaust pipe or other parts prone to vibration). The safety wire shall be annealed stainless steel, minimum Ø 0.7 mm. Copper wire cannot be used. External oil carrying hoses shall have threaded fittings that shall be secured. If fittings cannot be used, safety wired jubilee clips that shall be secured to the motor, oil filter or oil cooler, must be used. (Applies from 2002-01-01).

5.14. * Oil catch tank: Vents from motor/gear box shall be routed to catch tanks.

5.15. Carburettor: There are no restrictions to the carburettors.

5.16. Ignition, emergency stop: There is no restriction to the ignition system. The machine shall be equipped with some sort of emergency stop switch that shall be easily accessible at or adjacent to the handlebar.

5.17. Gearbox: The type and model must be as was used during the period. There are no restrictions to gear ratios and number of speeds. No external electric means is allowed.

5.18. Transmission: There is no restriction to the transmission. Chain link with clip shall be secured with locking wire or similarly secured.

5.19. Exhaust, silencing: Applies for all riding. The machine must be equipped with appropriate means of silencing: Maximum permitted noise level is 102 dB (A).

5.20. Levers, handles, instruments: No restriction, but the throttle must return to closed position by it self.

5.21. Brake wire: Front brake wire minimum Ø 1.75 mm, Rear brake wire minimum Ø 2.5 mm. Nipples must be soldered, no screw nipples allowed.

5.22. Replicas: The look of a replica shall mainly comply with the original machine.

5.23. Others: The machine shall be prepared for competition. Side stand and start lever shall be removed.


6. Machine Regulations for Classic Road-Racing class 7 C FORMULA 80-87 (currently not included in the EUM Vintage cup)

These regulations are governed by NCRC (Norwegian Classic Racing Club)

Riders that want to attend this class should contact the Norwegian club for technical regulations and cycle license.

Classic Racing club

c/o Odd Oeiseth,

Barkaakerveien 85,

N-3157 Barkaaker, Norway

Web site: www.crc.no.

N-3157 Barkaaker, Norway

TECHNICAL REGULATIONS FOR CLASS FORMULA 80-87

(Revised February 2008)

This is a translation of the Norwegian language regulations. In case of discrepancies, the Norwegian language regulations shall apply.

1. Type and age: The class is open for bikes that were used or could have been used for FIM GP class racing or FIM formula class racing through the 1987 season. Replicas of such bikes are also eligible. Bikes produced for the 1988 season and prototypes or replicas of prototypes that were used by manufacturers for preparation for the FIM superbike class introduced for the 1988 season is prohibited, even though these should have been raced before December 31st 1987. Prototypes constructed exclusively for other racing classes than those already mentioned are prohibited. Yamaha TZ 750 with typical period modifications is allowed despite not complying with the above described categories because this is an older bike that was still widely used during this period.

The class is divided in 2 categories based on cylinder volume.

For modifications and building of prototypes, the following paragraphs shall be adhered to:

2. Vehicle Licence: Vehicle licence is required for organised racing and parading. (Not applicable to riders/bikes licensed outside Scandinavia)

3. Frame and Swingarm: Shall be of design and type as used during the time period of the class.

4. Front Fork: Shall be of design and type as used during the time period of the class. WP inverted front fork with outside adjustment to damping is prohibited. Öhlins inverted front fork is prohibited

5. Steering: Reference is made to FIM technical regulations.

6. Wheels: Wheels shall be typical for the period, 16,5" wheels are prohibited. Spoked wheels are to have alloy rims of valanced or non-valanced type. All parts of the wheel that carries load shall be of metallic material.

7. Brakes: Cannot be of newer type or design than used inside the period. Carbon brake discs are not allowed. Brake callipers shall be of type as available inside the period. Maximum 4 pistons for double acting callipers and 2 pistons for single acting callipers. Radial mounted callipers are not allowed.

8. Tyres: Slick- and rain- tyres are eligible for this class. Air valve of short type is recommended. Valve caps are to be of metal and equipped with a gasket.

9. Rear Suspension: Hydraulic pre load adjustment for spring is prohibited. Linkage system for actuation of suspension unit is allowed.

10. Tank, seat and fairing: Design and appearance shall be as used during the period. Fairing is obligatory. For 4-strokes only, the following shall apply: The lower fairing has to be constructed to hold, in case of an engine breakdown, at least half of the total oil and coolant capacity used in the engine (min. 5 litres). The lower edge of openings in the fairing must be positioned at least 50 mm above the bottom of the fairing.

11. Number plate: Reference is made to general technical regulations.

12. Motor: Crankcase, cylinder and cylinder head shall be of design as was available during the period. No tuning restrictions. Modification to original parts is allowed, also fitment of period accessories. The class is divided in 2 categories based on cylinder volume.

Category A: Cylinder volume 251 - 500 cm3 for bikes classified in accordance with the GP regulations. Cylinder volume 401 - 500 cm3 for 2-stroke and 601 - 1100 cm3 for 4-stroke bikes classified in accordance with the Formula regulations.

Category B: Cylinder volume 0 - 250 cm3 for bikes classified in accordance with the GP regulations. Cylinder volume 0 - 400 cm3 for 2-stroke and 0 - 600 cm3 for 4-stroke bikes classified in accordance with the Formula regulations.

Boring of the cylinder to the engine manufacturers standard over-sizes is allowed even though this may cause the cylinder volume to exceed the upper limit for the class.

13. Oil hoses, drain plugs and filling plugs: Oil plugs or bolts that may cause oil leak if becoming loose is to be secured with locking wire or locking washers. The locking shall be against a solid part of the bike (not an exhaust pipe or other moveable or vibration prone part). The locking wire shall be stainless annealed wire of 0.7 mm minimum thickness. Copper wire is prohibited. External pressurised hoses shall be armoured and have threaded secured fittings. Jubilee clips are prohibited for such hoses. Oil filters are to be fitted with a jubilee clip that is secured with locking wire to a solid point.

14. Vents: Vents from crankcase, gearbox and fuel tank shall be equipped with suitable catch tank to prevent spillage.

15. Carburettors: No restrictions to carburettors. Fuel injection is allowed if originally used on the engine. All parts of the system must be as original, but the inside diameter of the throttle house can be changed.

16. Ignition system: No restrictions to the ignition system. The bike shall be equipped with an ignition cut-off switch easily accessible on the handlebar.

17. Gearbox: Maximum 6 gears allowed.

18. Transmission: No restrictions to transmission. Chain link with clip shall be secured with locking wire or similarly secured.

19. Exhaust system and silencer: The bike must always be equipped with silencer to satisfy current noise restrictions. Silencer can be terminated behind the rear wheel if necessary to meet the noise restrictions.

20. Instruments, handles and levers: No restrictions to instruments. Handles and levers must comply with the general technical regulations. The throttle grip must return to closed position by it self.

21. Replicas: The look of the bike must comply with the original bike.

Generally: The bike shall be prepared for racing. Stands and kick-start lever shall be removed.

General lines for classification of bikes

For the FIM formula classes, the engine shall be from a road bike. Frame, suspension and wheels shall comply with regulations described above. Otherwise there are no restrictions. The cylinder volume for formula 1, 4-strokes, was 1000 cm3 through the 1983 season. It was then reduced to 750cm3. For these regulations the upper limit is set to 1100cm3 to provide for a broader range of bikes to compete.

Listing with guidelines and examples of bikes and their legitimacy. Bikes not listed will be evaluated separately. Bikes produced unchanged in 1987 and later will also be legitimate.

Bimota

The Bimota YB4 is allowed

YB4 EI is not allowed.

Bimota frames identical to the YB4 frame or other frames produced within the time frame for the class is allowed in combination with engine types eligible in the class.

Ducati

Bikes with 4 valves per cylinder are prohibited.

Harley Davidson

HD Sportster cup has earlier been run as a separate class, but because of declining interest, the class has been discontinued. For these bikes still to be raced, it has been decided that they can compete with the formula 80 – 87 class.

The following special rules shall apply for these bikes:

- Maximum cylinder volume 1200 cm3

- The standard frame has to be used

Apart from this, the rules for the class have to be adhered to.

Honda

RS 250 allowed through model year 1992.

RS 500 bikes with frame made from tubing are allowed. Bikes with ”deltabox” type frame are not allowed.

CBR 600 model years 1987, 88, 89 og 90 (motor and frame no PC19….) is allowed.

VFR 750 model years 1986, 87 and 88 is allowed.

VFR 750 R (RC 30) is prohibited.

CBR 1000 model years 1987 and 88 are allowed.

Kawasaki

GPX 750 through model year 1988 is allowed.

ZX 10 is allowed.

ZXR 750 is prohibited.

Rotax 250

Cylinders of model year 87 and 88 that can be identified with cast in part no 223 350 (with exhaust valve) or 223 355 (without exhaust valve) are allowed. Model year 89 and later, part no 223 530 and 223 535 is not allowed. Cylinders that are not identified with part no is not allowed. V-twin engines are not allowed.

Suzuki

RG 500 MK VII and later models are allowed.

RG 500 road bikes are allowed

GSXR 750 model years 1985, 86 and 87 are allowed. 1988 model as a complete bike is not allowed. However, the frame from the 1988 model is regarded as a replica of a frame that the factory used for racing within the time limit for the class and is thus allowed. GSXR 750 RR is not allowed.

GSXR 1100 model years 1986, 87 and 88 are allowed.

Yamaha

TZ 250 parallel twins with exhaust ports pointing forward are allowed. Newer models with rearward pointing exhaust ports are not allowed.

TZ 500 with 2 rearward pointing exhaust ports is allowed (TZ 500J).

TZ 750 is allowed.

RD 350 is allowed.

RD 500 is allowed.

FZ 750 and FZR 750 are allowed. FZR 750 R (OW01) is not allowed.

FZR 1000 is allowed. FZR 1000 EXUP is not allowed.

For bolting meaning tea and contact: www.crc.no/formula.htm.