Wiseco 4716M10000 100mm 11:1 High Compression Piston Kit for Motorcycle Engine Performance Upgrade - Perfect for Harley, Honda, Yamaha & Suzuki Custom Builds and Racing Applications

Bore: 100.00mmCompression: 11.0:1 CompressionSizing: Standard BoreForged from high-silicon aluminum alloy for maximum strength and dependability.. Innovative forging design and piston skirt provide maximum horsepower and torque.. Wiseco High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise).. Oversize pistons require cylinder sleeving.. SPECIFICATIONS. Displacement: 644cc. Bore - Standard: 100.00mm. Bore - Actual: 100.00mm. Bore - Oversize: STD. Stroke: 82.6mm. Compression Ratio - Actual: 11:1. Dome Type: Domed. ITEM CONTENTS. 3937XS - 100.00 mm Ring Set. CW23 - ROUND WIRE PIN LOCKS 23MM (PAIR). S626 - Pin- 23mm x 2.5in. x 4.0mm wall unchromedThis item fits the following vehicle applications:compatible with Honda XR650R 2000-2007