Athena Big Bore Cylinder Kit 7.0 mm Oversize to 83 mm - 300cc - P400220100005

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
• CRANKSHAFT POWER: 42.3 HP / 10.750 RPM