Naraku 58.5mm Cylinder Kit (NK600.03) — engineered for riders who want more torque, higher top speed, and smoother acceleration. This high-quality kit boosts your stock 150cc GY6 engine to approximately 160cc, delivering a noticeable increase in performance while maintaining reliability and everyday rideability. Manufactured by Naraku Performance, this kit is built from premium cast aluminum with a durable iron sleeve, ensuring excellent heat transfer, longevity, and consistent compression. Perfect for both daily riders and performance enthusiasts. Features: Genuine Naraku Performance cylinder kit Fits all standard GY6 125cc / 150cc engines (157QMJ / 152QMI) 58.5mm bore increases displacement to ~160cc High-strength cast aluminum with iron liner Optimized port design for improved air-fuel flow and combustion Compatible with stock or performance cylinder heads Includes cylinder, piston, rings, wrist pin, and clips Specifications: Brand: Naraku Part Number: NK600.03F Bore Size: 58.5mm Displacement: 160cc (approx.) Engine Type: GY6 125/150cc (152QMI / 157QMJ) Compatibility:Fits most scooters, buggies, and ATVs with GY6-style engines
