{"product_id":"athena-p400250100007-80cc-big-bore-cylinder-kit-with-cylinder-head-50mm-bore-premium-2-stroke-performance-upgrade-compatible-with-kawasaki-kx65-suzuki-rm65-2000-2024","title":"Athena P400250100007 80cc Big Bore Cylinder Kit with Cylinder Head (50mm Bore) - Premium 2-Stroke Performance Upgrade, Compatible with Kawasaki KX65 \u0026 Suzuki RM65 2000-2024","description":"UPGRADE YOUR DIRT BIKE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 65cc youth two-stroke racing engine with the Athena Big Bore Cylinder Kit (Part No. P400250100007), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 80cc 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 a precision-machined 50mm big bore cylinder, a dedicated high-compression cylinder head, a premium cast piston assembly, rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track performance without requiring any machining or structural engine modifications to your factory crankcase.","brand":"Athena","offers":[{"title":"Default Title","offer_id":52658332598559,"sku":"P400250100007","price":863.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0813\/2195\/1519\/files\/P400250100007-1.jpg?v=1783350623","url":"https:\/\/massdepot.com\/products\/athena-p400250100007-80cc-big-bore-cylinder-kit-with-cylinder-head-50mm-bore-premium-2-stroke-performance-upgrade-compatible-with-kawasaki-kx65-suzuki-rm65-2000-2024","provider":"Mass Depot","version":"1.0","type":"link"}