Athena Big Bore Cylinder Kit 6.0 mm Oversize to 83 mm - 290cc - P400485100032

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: 31 HP / 9.200 RPM