Alright I bought this bike with a trailbikes 88cc kit with the 20mm carb and a few other things. I tore it down the other night thinking I was going to re-ring it but theres some nasty gouges in the cylinder wall. So im trying to order a new cylinder and piston from tb their not the fastest to respond to emails so I'm here. Well I think they put the tb kit that comes with the cam but I have no idea what cam is in it. Its stamped with 55 on it Im going to take a pic tonight and post it if nobody responds. Thanks ahead of time.