The kit also includes our custom primary spring which improves clutch backshift and helps hold peak RPM without as much fade as the factory spring

Tune your TRA to perfection with these stock or oversize rollers for your primary

Comes with billet cap and bolt

Use with the stock pipe or our Fatt Azz single pipe (Fuel controller required with pipe)

please choose the battery box option or highlight the stock battery box picture to see where trimming is required

Piston Durability Kit / Rev 800 Category_Default Category/SLED/Polaris/AXYS 800 H.O. '18-Up The kit also includes ourLooking for top notch quality in a dual ring forged piston? Look no further! These German made Wossner pistons are nothing but the best. Dual ring design allows heat to transfer more efficiently, resulting in a better performing and longer lasting Rev 800! Skirts come teflon coated for maximum piston longevity. If you are rebuilding your Rev 800 motor, these are the pistons you need!