I have tried to search the forums in here,but i cant really decide wich one is the best match for an UNTUNED MHR 70cc
Can anyone help with this? According to many in Denmark the C21 should be a super choice,but a guy from Holland said that it would be overkill,and i should be better of with a C16?
The main purpose for the bike is fast street racing and some track. No sprint!
Really need som answers 2day,cause im dying to drive... will order exhaust 2day..
Thanx guys