{"product_id":"rdr-performance-clutch-drum-for-gy6-169-497","title":"RDR Vented Performance Clutch Drum for GY6 Honda Navi","description":"\u003cp\u003eEliminate drivetrain slip and maximize power transfer with the premium \u003cstrong\u003eRDR Performance Vented Clutch Drum\u003c\/strong\u003e. Engineered as a high-performance upgrade for standard 125cc and 150cc 4-stroke GY6 engine platforms, this clutch bell is structurally optimized to solve the common overheating, glazing, and shuddering issues found in stock commuter setups.\u003c\/p\u003e\u003cp\u003eThe interior contact wall features an advanced, friction-enhanced surface treatment that allows your clutch pads to bite hard and immediately upon engagement. Combined with a precision-balanced, multi-window vented outer chassis, this drum rapidly channels away clutch dust and operational heat, keeping your CVT system running cool even under aggressive stop-and-go urban riding or track-level stress.\u003c\/p\u003e\u003ch3\u003eProduct Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented Heat-Dissipation Windows:\u003c\/strong\u003e Strategically machined perimeter cutouts dramatically increase airflow, cooling internal pads and preventing thermal glazing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFriction-Enhanced Inner Surface:\u003c\/strong\u003e Specialized internal textured wall provides a superior abrasive bite, eliminating off-the-line engine shudder and clutch slip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDynamic Spin Balancing:\u003c\/strong\u003e Precision computer-balanced during manufacturing to eliminate high-RPM vibrations and protect your rear input shaft bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Structural Design:\u003c\/strong\u003e Sheds unnecessary rotating mass compared to dense factory castings, promoting faster throttle response and smoother spooling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spline Count:\u003c\/strong\u003e 19-Tooth Spline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Inner Diameter (ID):\u003c\/strong\u003e 125mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Outer Diameter (OD):\u003c\/strong\u003e 137mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplined Inner Diameter (Peak-to-Peak):\u003c\/strong\u003e 13.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplined Inner Diameter (Valley-to-Valley):\u003c\/strong\u003e 15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade:\u003c\/strong\u003e High-Tensile Machined Steel Alloy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComprehensive Vehicle Application Matrix\u003c\/h3\u003e\u003cp\u003eThis 125mm, 19-spline performance clutch drum is a direct replacement or sport upgrade for the following 4-stroke vehicle platforms:\u003c\/p\u003e\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f8f8f8;\"\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eVehicle Classification\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #ddd;\"\u003eVerified Compatible Model Applications\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e150cc \/ 125cc GY6 Scooters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eAll models utilizing standard \u003cstrong\u003eQMI152 \/ QMJ152\u003c\/strong\u003e and \u003cstrong\u003eQMI157 \/ QMJ157\u003c\/strong\u003e air-cooled 4-stroke import engines (including TaoTao, Wolf Brand, Ice Bear, Bintelli, Lance, Maddog, and Jonway builds).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eHonda Mini-Bikes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHonda Navi 110 (Direct drivetrain upgrade over factory restrictive bell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eATVs \u0026amp; Off-Road Karts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e150cc GY6-driven off-road buggies, go-karts, and utility ATVs requiring a 19-spline setup (such as Trailmaster, Carter Talon, and Hammerhead models).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cdiv style=\"background-color: #fffaf0; padding: 15px; border-left: 5px solid #f0ad4e; margin: 20px 0;\"\u003e\n\u003cstrong\u003eTUNING MECHANIC'S INSTALLATION ADVICE:\u003c\/strong\u003e When installing a fresh performance clutch drum, always inspect the condition of your existing clutch pads. If your old pads are severely glazed, worn unevenly, or contaminated with grease, they must be sanded flat or replaced entirely. Failing to mate clean pads to a fresh performance drum can compromise the specialized inner coating and cause premature clutch wear. Always torque the rear clutch bell nut to factory manual specifications.\u003c\/div\u003e\u003cp\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.p65warnings.ca.gov\" target=\"_blank\"\u003eCalifornia Prop 65 Warning\u003c\/a\u003e\u003c\/p\u003e","brand":"RDR","offers":[{"title":"Default Title","offer_id":49985993474328,"sku":"169-497","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/169-497.webp?v=1750710634","url":"https:\/\/www.scooterworks.com\/products\/rdr-performance-clutch-drum-for-gy6-169-497","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}