Shorten time for initial break-in of clutch!Increase friction grabbing force for clutch transmission performance!Accuracy machining processes!Wider clutch shoe linings!HRC 58 – 60 Center shaft hardened heat-treatment!Deeper Drum!Compact assembly!No need to replace the belts whenfits it on the WC1 and NE5 reproduction Whizzer motorbikes!We are offering complete parts and kits for a home-built Cruzzer Motorbikes. The assembling processes are shown by videos on the website "cruzzermotorbikes.com". For more detailed information, please check our blog "wc1manufacturer.wordpress.com" by Google search.NOTICE: We, the seller of listed item or items, are NOT Whizzer USA. We DO NOT represent Whizzer USA. We are NOT affiliated with Whizzer USA or the Trademark Whizzer, Whizzer USA, Whizzer motorbike. We manufacture and sell aftermarket parts that will fit on certain Whizzer motorbikes and non-Whizzer scooters. We do not manufacture, offer or sell Whizzer brand parts. Any use of the term Whizzer or Whizzer models in the listing are solely for item description purpose only.Dealers wanted!We offer the TO-DOOR sea freight shipping service.