My local classic trials Twinshock regs
Machine Eligibility
Twinshocks
1. Motor to be from a motor cycle originally manufactured, produced and sold prior to 1985 as a twinshock motor cycle.
2. Main frame loop to be from a motor cycle originally manufactured, produced and sold prior to 1985 as a Twinshock motor cycle. Replica frames are allowed but should comply with the concept that the finished machine should retain the appearance of the original machine that it pertains to be a replica of.
3. Maximum fork stanchion diameter is 38mm.
4. Fuel must be carried in a fuel tank located above the motor. Fuel lines to be routed away from exhaust and silencer.
5. Rear shock absorbers may be of any type but must be mounted one either side of the machine and must not be mounted at an angle that exceeds 40 deg from the vertical. OSSA gripers exempted.
6. Brakes must be of drum type, no twin leading shoe or disc brakes, and be cable or rod operated.
7. No hydraulic brakes or clutch operation allowed.
8. Ignition cut out switches, kill switches, must be fitted and working. This is a safety requirement.
9. Silencers must be fitted and must reduce exhaust noise to an acceptable level.
10. Tyres to have trials tread pattern and not exceed 2.75 section front and 4.00 section rear. Tubeless tyres allowed.
