stu firth
I build and race speedway sidecars. My current bike is a Rf900 based machine putting out 160hp running on methanol. My previous sidecars used engines like gsx1100, gsx1100(with a gsxr750 head) and z1000´s.
The rf900 based machine eats a back tyre every 60seconds we use 4 or 5 back tyres a night. and uses 20ltrs of methanol in one night ( thats five races @ 60 seconds each).
The Rf900 engine is one of the most underated engines I´ve ever come accross and are very strong in the bottom end department.