Streetstock 125cc Evo

2019 – Streetstock 125cc Evo Regulations

Engine Capacity
Upto 125cc four stroke & 50cc Two Stroke engines from a homologated road legal bike. No tuning restrictions.
Explicitly No Motorcross, Mini moto, or GP competition engines.
Chassis.
The Frame must be from any homologated road legal bike.
Suspension
The forks must be from any homologated road legal bike. Internal modifications are allowed. Rear shocks no restrictions.
Wheels
Wheels must be from any homologated road legal bike.
Brakes
Any brakes and disc from any homologated road legal bike.
Tyres
No restriction on tyres. Wets, slicks & tyre warmers permitted. Slick tyres are restricted by the ACU age and license restrictions
Bodywork
Any race body can be fitted.


The bike must meet ACU road racing standing regulations in every other respect. / White numbers with Blue backgrounds