Wiseco 4117M08900 Piston Kit - Standard Bore 88.95mm, 10.5:1 Compression exhaust-parts-accessories-replacement-parts Center tread includes an extra

Center tread includes an extra groove to offer outstanding self-cleaning characteristics

1997-1998 Arctic Cat EXT 580 EFI Deluxe

Dimensions: 5 5/16in

2023 KTM 150 XC-W

Unbelievable noise reduction in high-performance package

Wiseco 4117M08900 Piston Kit - Standard Bore 88.95mm, 10.5:1 Compression exhaust-parts-accessories-replacement-parts Center tread includes an extraBore: 88. 95mm Compression: 10. 5: 1 Compression Sizing: Standard Bore SPECIFICATIONS. Displacement: 497cc. Bore Standard: 89. 00mm. Bore Actual: 89. 00mm. Bore Oversize: STD. Stroke: 80. 00mm. Cylinders: 1. Compression Ratio Actual: 10. 5: 1. ITEM CONTENTS. 3504XC 89. 00 mm Ring Set. CW21 ROUND WIRE PIN LOCKS 21MM (PAIR). S527 PistonPin 21mm x 2. 126in. NonChromed SW All Wiseco Pistons are forged from high silicon, low expansion aluminum which offers