How to Build a Fast RS660. Supertwin project showing the tricks for making an Aprilia really perform

https://uk.weareholy.com/discount/OBSESSION?ref=OBSESSIONENGINEERING

Dave has spent the last couple of years getting top notch performance from RS660 Supertwin race bikes. In this series he'll show you the tricks for getting the Aprilia to go FAST.

https://obsessionengineering.co.uk/shop