Top speed mid 50mph. GPS clocked it at 53mph still a bit of top end left . ARC Billet rod and flywheel with 22lb valve springs. Stock camshaft holding me back? Pulls really hard to 40mph after that acceleration flattens out a bit. Bottom end torque really good will pull a wheelie if you cracked the throttle too quickly. Members here on the forum recommended a 308 cam. It is a very fast bike especially off the bottom but seems to loose momentum after 45mph or so. Would an aftermarket camshaft make a difference over the stock cam?