Lightened flywheels...

[amalventano at sc.rr.com (Allyn)]

> If you were removing material across the entire face of a conventional
flywheel (i.e. the flywheel
> bolts directly to the crank) that had a heavy outer ring it would weaken
the flywheel. But just
> removing material from the outer ring and leaving the friction face intact
actually makes it capable
> of higher RPM before grenading.
> Dan

...as well as the fact that you leave those fins in place, which provide
extra surface area for heat removal, keepling clutch life at a maximum.

Al