I looked at the pit bike market for modifications for my K-Pipe, I replaced the 125cc after I toasted it, with a 190cc, now it's stoopid fast, hafta stiffen the spaghetti frame, get a steering damper mounted to use all the power, from a measly 8 stock hp to 17, gets scary above 60, still has more to go at 70 but I'm too scared