none, you can just make different combinations of gears witrh the different sets for the perfect ratio.. work out what kind of top speed increase you want. more top speed means less accell tho
cheers i thought that was the case but never been clear, how easy is it to fit a gear up thats already pressed? is it just take one out put the other in ?
yes once its been pressed you jst replace the old with the new obviously replacing all the washers correctly and as they were before
if its a piggy motor you need silicone to re-seal the plate to the engine as theres no gasget.. less is more with silicone as always
