[FPMXer]

The 134cc kit gave the bike more bottom and it holds on the pipe longer and seems to rev all day long. But the best thing anyone can spend money on for their bike to perform at it's best is properly set up suspension. I had my suspension revalved after the 134 treatment and now I need it resprung as the stock springs are worn out and limiting me on the track. If you can ride the 125cc's to it's max you will benifit from the 134cc kit.