Athena Big Bore Cylinder Kit 4.0 mm Oversize to 82 mm - 280cc - P400210100033 | Honda CRF250R 2010-2017

Features:

• Kits 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
• Rear Wheel Horse Power: 39.3 HP / 11,600 RPM