Athena P400510100008 Big Bore Cylinder Kit (490cc) - 4.50mm Oversize to 100.00mm riding-apparel-under-garments-bicycle-e-power Super tacky and attracts micro

Super tacky and attracts micro dust and dirt particles

Includes left & right with hardware

2006-2021 Yamaha YZ450F

2004-2006 Arctic Cat 500 4x4 Auto TRV

Integrated speaker pockets to accommodate BlueTooth communication system speakers

Athena P400510100008 Big Bore Cylinder Kit (490cc) - 4.50mm Oversize to 100.00mm riding-apparel-under-garments-bicycle-e-power Super tacky and attracts microKits include aluminum cylinder with nickel carbide coating designed with larger water jackets. Includes Forged piston, rings, clips and pin. Athena top end gasket set includes required seals and hardware. Easy to follow step by step installation instructions. Most are bolt on; no machining required except where noted. Vehicle Fitment: 2006 2009 Suzuki LT R450 QuadRacer