UP AND RUNNING
By the time you read this article, we will have had rounds six and seven of the proposed ten-round 2021 National Rockshocks Classic Trials Championship. Print deadlines have to be met, and so the cut off for the inclusion of the championship meant we could only report up to the halfway point, round five. As the recovery from the pandemic continues, and the road map opens out to allow riders to compete across the country, the championship classes have now been changed to include just six routes. From round four, there were just the three championship classes with a revised structure: Class one, air-cooled mono-shock; Class two, twin-shock; and Class three, British motorcycles. Working better than many had anticipated, the ACU online entry system gives the organisers more information on what level of entry they will be expecting.
One request the organisers have is that riders make sure they have entered the correct class. Unfortunately, it’s difficult to change class and machines, causing problems for both the event organisers and championship collators. However, below are the revised rules for the 2021 championship. Before entering future events, it’s worth checking you are in the correct class for the machine you are riding.
WHAT’S YOUR CLASS?
Class 1: This class will be open to all air-cooled mono-shock machines that were in production before the year 2000. This also includes any air-cooled mono-shock machine that has been converted to a twin-shock, as such machines cannot run against genuine twin-shocks.
Eligibility: The motorcycles should maintain the original silhouette as of the date of manufacture.
Acceptable Modifications: The option to run tubeless tyres, to make minor modifications to the frame, and a choice of carburettors.
Unacceptable Modifications: Disc brake conversions unless already fitted. Fork stanchions must not exceed 36mm Ø.
Class 2: This class is open to later twin-shock machines manufactured up to 1986.
Acceptable Modifications: The option to run tubeless rims, to make minor modifications to the frame, a choice of carburettors, cycle parts can be changed as long as they are from the same period. Steering head angle can be moved and the swinging arm length altered. The position of the footrest can also be moved.
Unacceptable Modifications: Modified mono-shock trials machines converted to twin-shocks. Air-cooled mono-shock engines. Disc brake conversions. Fork stanchions must not exceed 36mm Ø. Note: SWM Jumbo models fitted with the original 38mm Ø forks are acceptable.
Class 3: This class is open to Pre-75 British machines.
Replica frames or modified originals are allowed, as are billet yokes, wheel hubs, and front forks with modern internals. This is the format followed by most classic clubs countrywide, and there seems little point in changing that for this series
Acceptable Modifications: Tubeless wheel rims, there is no restriction on carburettors.
Unacceptable Modifications: Disc brakes and front forks exceeding 35mm Ø.