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2014-2020 Yamaha YZ250F
2013-2015 KTM 250 XCF-W
Replacement OEM #72300-89
2014 Arctic Cat TRV 550 XT
Wiseco 4939M08500 Piston Kit - 0.50mm Oversize to 85.45mm, 11:1 Compression fuel-air-reeds-reed-valves-reed-valves 2014-2020 Yamaha YZ250FBore: 85. 45mm Compression: 11: 1 Compression Sizing: 0. 50mm Oversize SPECIFICATIONS. Displacement: 426cc. Bore Standard: 84. 50mm. Bore Actual: 85. 00mm. Bore Oversize: . 50mm. Stroke: 75. 00mm. Compression Ratio Actual: 11: 1. Dome Type: Dished. Skirt Coating: Moly. ITEM CONTENTS. 8500XX 85. 00MM RING SET. CW20 ROUND WIRE PIN LOCKS 20MM (PAIR). S520 PistonPin 20mm x 2. 362in. NonChromed TW All Wiseco Pistons are forged from high silicon, low
US$ 19.99
US$ 89.99
US$ 17.99
