How do you "uprate" a flywheel? Make it able to take higher revs before it explodes? Do you mean a lightened flywheel?
How much extra power percentage wise you think that lightened flywheel will let on to the road. I take it this will reduce transmission losses slightly.
i dont think there is any gain in power it just revs up faster
I ran a lightened fly on my valver, made it rev like an ON/OFF switch lol
I had mine as light as possible on the standard flywheel which left it at 4.5kg.