Sp1 09-611 T-Moly Series Piston Kit - Standard Bore 81.00mm tools-bearings Monster S2R and S4R models

Monster S2R and S4R models w/ single sided swing arm system that use eccentric hub to adjust chain

The bags are mounted with cable ties or laces

1999-2003 Polaris 500 Classic

2011-2015 KTM 150 SX

Features GPS speed

Sp1 09-611 T-Moly Series Piston Kit - Standard Bore 81.00mm tools-bearings Monster S2R and S4R modelsMachined smooth heads. MOS 2 Coating:. Draws heat through piston walls and out the bottom. Reduces heat and friction, for added power and longevity. Helps eliminate cold seizures, and increases durability. Hard anodized crowns. Hypereutectic Cast. Vehicle Fitment: 2001 2002 Arctic Cat Mountain Cat 800 2002 Arctic Cat Mountain Cat 800 EFI 2002 Arctic Cat Mountain Cat 800 EFI LE 144 2002 Arctic Cat Mountain Cat 800 EFI LE 151 2001 Arctic Cat Mountain