Piston Kit - Standard Bore 78.00mm, 12.9:1 Compression For 2004 Honda CRF250X Offroad Motorcycle Forged from high-silicon aluminum alloy for maximum strength and dependability.Innovative forging design and piston skirt provide maximum horsepower and torque. High-Performance piston kits are priced with piston, rings, pins and circlips (unless noted otherwise).Oversize pistons require cylinder sleeving. *Bore Diameter: 78.00mm ^ Color: Silver ^ Description: Piston Kit - Standard Bore 78.00mm, 12.9:1 Compression ^ Material: Aluminum ^ Quantity: 1 Kit