* Redesigned cylinder head including reinforced camshaft bridge, valve retainers, and updated cam chain tensioner to help reduce engine noise.
* New clutch primary gear and springs for better engagement and clutch action.
* Updated counterbalance bearings for increased reliability.
* Stronger cam chain guides
* Increased oil volume to the engine cam chain for reduced friction.
* New oil drain plug for easier oil changes.
* Offered in 350, 450, and 520cc for 2012