ProX Piston Kit 85.00mm Arctic Cat | 01.5811.000 Youth Make Model Year YAMAHA WR250

Make Model Year YAMAHA WR250 89 YAMAHA YZ250 89

6" outer diameter

• Upper material is reinforced with PU for high levels of water-resistance and durability and improved weight-saving performance

It's flexible and strong

room for up to 29

ProX Piston Kit 85.00mm Arctic Cat | 01.5811.000 Youth Make Model Year YAMAHA WR250High quality cast piston made with dedicated tooling and molding Made from hypereutectic alloy for extra strength and reduced expansion Special dual ring setup for improved durability and resistance to wear Full MOS2 skirt coating for improved breaking in and resistance to scuffing Anodized piston dome for increased protection against excessive heat Usage of high quality rings such as Riken for optimum heat transfer and sealing Kit includes piston,