CMC-rules

In case of a dispute regarding the content in a translation of this document, the Finnish original is in priority.

General principle:
Rules are based on so called production bikes. A class for factory bikes or replicas of factory bikes is determined by a
production bike with similar technical characteristics. For example, if characteristics X was in a factory bike in year Y but in a production bike in year Z, the bike will go to class according to year Z.
In class A this is interpreted more flexible as bikes were often "hand made".

Classic Motocross Cup rules in Finland 2017-18

Classes:

A:                      yearmodels 1968 and older. Class is divided into two separate classes:
A66+:                 rider's age 66 or more (rider is eligible the year he will be 66)
Ay:                    rider's age less than 66  

B:                      yearmodels 1969 – 1974. Class is divided into two separate classes:
B66+:                 rider's age 66 or more (rider is eligible the year he will be 66)
By:                    rider's age less than 66  

C:                      yearmodels 1975 – 1980

D:                      yearmodels 1981 – 1985
                         D1= 125cc, D2=250/500cc

E:                      yearmodels 1986 – 1990
                         E1= 125cc, E2=250/500cc

SV1:                 For sidecars of year models 1986 or older that have originally air-cooled motor.                        Two shock absorbers in rear, linkage system in front. Original, factory-made mono ok
                        in rear. Frame manufactured in 1986 or earlier. Similar reproduction frames allowed.
                        Bike's weight minimum 180 kg.
SV2:                 For sidecars of year models 1987 - 1989.
SV3:                 For sidecars of year models 1990 - 1996.

Technical issues:

The bike must have parts only from the correct timeperiod or new parts which are made with same charasteristics. Carburator can be newer but it must have round slide and to be as close to original as possible. Carburator with flat slide is allowed in bikes that had such originally. No carburators with accpump in A/B-classes. 

If the bike has newer parts than it originally had, it belongs to class according to these newer parts. For example, bike with motor from 1975 assembled in frame from 1972 goes to class C.

Folding footrest in all solo classes. All bikes must have silencer. In paddock there must be a carpet under every bike to prevent soil pollution from oil & gasoline leaks. Stop-button is recommended for A/B-class, in other classes it is mandatory. Each team must have at least one min. 6 kg fire extinguisher in the paddock.

Suspension:

Class A:      front 180 mm, rear 130 mm measured vertically
Class B:      front 180 mm, rear 130 mm measured vertically
Class C:      no maximum measures but the suspension must not be better than was available in 1980 models. Parts from 1981 are forbidden even if they were available in 1980.
In classes A and B shocks with dual function (so called gas- or airshocks) are allowed.
Shocks with external reservoir are not allowed in classes A and B.
Front fork max. diameter 36mm in classes A and B.
Bikes with monoshock must have suspension structure like original (all classes). 

Number plates:
A  white plate,
Ay: black numbers
A66+: red numbers

B  yellow plate,
By: black numbers
B66+: red numbers

C  black plate, white numbers
D1  green plate, white numbers
D2  yellow plate, black numbers
E1 blue plate, white numbers
E2  red plate, white numbers
SV1  yellow plate, black numbers
SV2  black plate, white numbers
SV3 blue plate, white numbers
Number must be also on the back of the rider (also passenger in sidecars). White bottom, black numbers.

Rider:
All riders must have a racing licence including insurance. Rider must have a EU accepted helmet with mouthguard, back and shoulder protector, motocross boots and long-sleeved shirt and pants. Riding gears, especially in classes A/B/C should not have bright, modern colours.

Race:

Races may be held together with modern bikes. Classes can be combined to one race but the results are counted separately. Race consists of practice (length is determined by local organizer, normally 15 minutes) and two heats which are 10 minutes + 2 laps. Pre-Race lap (also called as Sighting lap) as per decision of competition manager, normally only for A/B-class.

In case of a dispute regarding the content in a translation of this document, the Finnish original is in priority.