i think fitting new one is an improvement as old one with pinch bolt was bastard to get off....they changed bearings for some reason as well as you can see
Grzegorz ......55 cubic inches http://www.flickr.com/photos/25172906@N06/ 904WisecoTPUSAcamsTTPignitorgutted Airbox"breath"airIntakeKeihinCR-ScarbsBlackEpcoExhaustS/SwheelsPortedPolishedHead