New for 2019 - Thunderbike 'Ultra'

This class will be run on the same grid as the established ‘Extreme’ class.


Bikes eligible will be up to and including 2007. Legacy rules apply where by a machine is manufactured past this date but mechanically unchanged.


Maximum class horsepower is limited to 170hp, with a maximum power to weight of 1:1
So a 170hp bike can weigh a minimum of 170kg

Trophies for top 3 each race, Full Championship award at the year end.


This is the basic outline of the class, detailed regs are HERE