Quote Originally Posted by JohnL View Post
To flat shift correctly you'll need a lot of skill (more than I have, and I'm pretty adept at heel / toe etc), and a very light flywheel, or else the rpm will be too high when you try to select the higher gear, and the synchros will resist the shift, and / or you'll crunch the gears.

All in all it's a great way to wreck your gearbox, they just aren't designed to do it. Racing 'crash' boxes are different...


yea i have a 3.9kg flywheel, and what you stated happens, its sounds as tho the gears are crunching as im shifting, but its better to keep the revs high as that is where most of the power is