{"product_id":"rdln-racing-clutch-bell-qmb-139-1200-1281","title":"RDLN 107mm Racing Clutch Bell - Performance 139QMB GY6 50","description":"\u003ch3\u003e\u003cstrong\u003ePerformance RDLN Racing Clutch Drum Bell (107mm) for 139QMB\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eEliminate clutch slippage and maximize your scooter's power delivery with the \u003cstrong\u003eRDLN Racing Clutch Bell\u003c\/strong\u003e. Designed for high-performance \u003cstrong\u003e139QMB \/ GY6 50cc-100cc engines\u003c\/strong\u003e, this lightweight bell features a vented lattice design to significantly reduce rotational mass for faster acceleration and improved heat dissipation.\u003c\/p\u003e\u003cp\u003eThe specialized \u003cstrong\u003egrooved inner drive face\u003c\/strong\u003e provides a superior grippy surface that displaces friction material dust, effectively preventing clutch glazing and ensuring consistent, high-RPM engagement.\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eKey Performance Benefits:\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Engagement:\u003c\/strong\u003e Grooved drive face minimizes slippage and prevents glazing under heavy load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented Lattice Design:\u003c\/strong\u003e Increases airflow to keep the transmission cooler, extending the life of your clutch pads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Reduces rotational inertia for snappier throttle response and higher top-end RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Visibility Red Finish:\u003c\/strong\u003e Adds a custom racing aesthetic to your engine case.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eSpecific Model Fitment Guide:\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChicago Scooter Company:\u003c\/strong\u003e go., go. MAX, Bella Classic 50, Nitro Sport 50, Pug 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Scooters:\u003c\/strong\u003e Buddy 50, RoughHouse 50 \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePopular Brands:\u003c\/strong\u003e Fits most TaoTao, Wolf, Lance, BMS, Kymco, and SYM 50cc 4-stroke scooters with a 107mm clutch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e 139QMA, 139QMB, 1P39QMB, 1P39QMA-2 (50cc to 100cc Big Bore Kits).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 107mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 117.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Count:\u003c\/strong\u003e 22 Splines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpline Inner Diameter:\u003c\/strong\u003e 11.1mm (Peak-to-Peak)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e RDLN Racing Red \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Professional installation is recommended. Pair with RDLN Performance Clutch Shoes for the ultimate CVT upgrade.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCompatibility: \u003c\/strong\u003eThis product is compatible with 50 - 100cc 139QMB engines and those engines with the codes noted below:\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e139QMB-based 50cc \/ 80cc engines with the following engine codes:\u003c\/strong\u003e\u003c\/p\u003e\u003ctable style=\"width: 87.0908%; height: 78.3751px;\" height=\"100\" width=\"463\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003e139QMA\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003e139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003e1P39QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003e1P39QMA-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003eYN139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003eJJ1P39QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003e139FMA-2\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 19.5938px;\"\u003eBD1P39QMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 24.6905%; height: 39.1875px;\"\u003eBN139QMB\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 39.1875px;\"\u003e147QMD\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 39.1875px;\"\u003eOther QMA models\u003c\/td\u003e\n\u003ctd style=\"width: 24.6905%; height: 39.1875px;\"\u003eOther QMB models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDon't see your engine listed? If the engine code includes \"QM\" or \"FM\", this product is compatible with your vehicle.\u003c\/span\u003e\u003c\/p\u003e\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eAbout RDLN:\u003c\/strong\u003e RDLN is a premier line of aftermarket performance upgrade systems and components for scooters.  RDLN products are engineered to significantly improve the function, performance, and reliability of your vehicle with the ultimate goal being an optimal balance of price, power, and performance. RDLN’s extensive field-testing network ensures each product exceeds customer requirements and expectations every\u003c\/p\u003e","brand":"RDLN","offers":[{"title":"Default Title","offer_id":49227339727128,"sku":"1200-1281","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/files\/1200-1281_ce9740bf-d27e-4de5-857a-cb2b92bbf952.webp?v=1747853994","url":"https:\/\/www.scooterworks.com\/products\/rdln-racing-clutch-bell-qmb-139-1200-1281","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}