Good point Skid. An engine spinning at higher speeds will make up for a small flywheel, without the problem of a big flywheel. As long as they keep the revs high. Starts might be a bit slow, because it`s gotta get up to the high revs to begin with.
And no flywheels? Those bikes must have been a handful!
And no flywheels? Those bikes must have been a handful!