I just built my mountain bike w/ a 66cc 2 stroke and a SBP shift kit. I can just barely get to 25mph (40kph). The engine is bone stock with about 1 hour of time on it. Any ideas on what I should do or what aftermarket parts would be effective to get more power?
Ride it for a while. Your engine isn't even close to being broken in. The longer you run them the better they run. Give it some time before wasting your money on after market go-fast parts.
