Pro-X Racing Forged Piston Kit for 1999-19 Yamaha YZ250 - 66.36mm - 01.2321.B 2009 Yamaha YFM450 Grizzly 450 4WD/4X4 / Hunter / Spec. Ed. 2011 KTM 300 XC

2011 KTM 300 XC

1994 Polaris Indy XLT 580 SKS

NOTE: The Honda Foreman 500 Spring Adapter (Part Number #SPRH-ADAPTER) is required for fitment with 2013 Honda Foreman 500 models

1995 Ducati M900 Monster

(2) Round backing plate washers

Pro-X Racing Forged Piston Kit for 1999-19 Yamaha YZ250 - 66.36mm - 01.2321.B 2009 Yamaha YFM450 Grizzly 450 4WD/4X4 / Hunter / Spec. Ed. 2011 KTM 300 XCPro X Racing Parts Piston Kit ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low expansion, low friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc. Our OEM style Tin coated pistons assist the wear in process when you just started the