125 GP
The most popular bike used in this class is either the Honda RS125 or the Yamaha TZ125 however other models may be considered by the clerk of course if class numbers are low. Tyre brand and type is open however there is a minimum tread depth requirement and tyre warmers are not permitted.
The exhaust system has a noise limitation only and all requirements for class can be found by clicking on the link below.
For class rules click on the link below.