Originally Posted by Werks

Crankshaft dimensions (on the part of it that stick out of the engine) are pretty much standardized in length and width. So it should basically be the same with any brand which is why clutches are basically universal. Where there is variation is in both the length and the taper of the collet provided with the engine. This is why it is usually suggested that you use the collet provided with your clutch/flywheel but if you want to reduce the amount of shims used just find/use a slightly longer collet.