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Athena Big Bore Complete Cylinder Kit 70cc Big Bore for 02-05 Yamaha Vino Zuma
Athena 70200 Big Bore Complete Cylinder Kit (70cc Bolt On) - 47.66mm Bore. Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets. Forged piston with molybdenum coating. All are bolt-on; no machining required.