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Thank you for choosing to do business with us! Reach out to us anytime! UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 230cc four-stroke engine with the Athena Big Bore Cylinder Kit Part No. P400210100054, a premium trail-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 240cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability.
This complete bolt-on kit comes loaded with everything required for a flawless installation-including an advanced aluminum big bore cylinder, a high-performance forged piston coated with molybdenum, premium rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set-allowing you to dramatically increase trail performance without requiring any machining or structural engine modifications to your factory crankcase.