Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > Supersports: SS / SuperSport / Supersport 950 > How light can a flywheel get? Bling and more bling

[Davieravie]

http://ducatisportingclub.com/xmb/vi....php?tid=13978

[skidlids]

I take that when Ducati design the bike they make an allowance for the magnetic load of the alternator when running with lights on and as such have added a bit of extra weight to the flywheel to stop you stalling it during night/day use with the lights on.
If the bike is to be for track use only with no lighting load to worry about than I would have thought you could quite happily run a marginally lighter flywheel. Other things that will be considered when choosing a flywheel weight are valve overlap, compression ratio, piston rock at the top of the stroke.
Best thing is to talk to the experts like JHP and see what advice they give.

[nelly]

Originally posted by wolverine
so has anyone got the insight as to wether i need to lightern the other side of the crank to keep it balanced?

The clutch basket isn't on the crank, so it'll make very little difference to the inertia of the crank.

[wolverine]

cheers dude!

[Jools]

Can't you run some Dukes without a flywheel at all?

[Jools]

DOH !!!

http://www.ducatisportingclub.com/xm....php?tid=26807