Re-Phased XS650 Engine. This is a 277 degree rephased crank in action showing the rotation of the crank and the travel of the pistons in the cylinders. I do these cranks for many people in the UK and AU and have just now been getting interest in the US. I have a small business located in the mtns of North Carolina building choppers, cafe racers, and hot rod motorcycles. I build the cranks AND cams for these engine. Contact me at HughsHandBuilt @ Gmail.com