{"product_id":"heavy-hitter-420-primary-chain-drive-conversion-kit","title":"Heavy Hitter 420 Primary Chain Drive Conversion Kit","description":"\u003cp data-start=\"68\" data-end=\"583\"\u003eThe Heavy Hitter 420 Primary Chain Drive Conversion Kit is the \u003cstrong data-start=\"150\" data-end=\"194\"\u003ehighest-performance chain drive solution\u003c\/strong\u003e for Sur Ron, Segway, E Ride, Ventus, and Falcon platforms. Stock belts might survive casual riding, but when you throw real torque at them, especially with upgraded motors and controllers, they fail. Other chain kits try to solve the problem but bring excess weight, higher resistance, or rubber dampers that actually accelerate chain wear. Heavy Hitter fixes all of it.\u003c\/p\u003e\n\u003cp data-start=\"585\" data-end=\"1130\"\u003eAfter years of testing and breaking parts, we built the \u003cstrong data-start=\"641\" data-end=\"683\"\u003elightest 420 primary kit on the market\u003c\/strong\u003e with the least rotating mass. The setup pairs a \u003cstrong data-start=\"732\" data-end=\"773\"\u003e7075 T6 billet aluminum rear sprocket\u003c\/strong\u003e for weight savings with a \u003cstrong data-start=\"800\" data-end=\"844\"\u003enitrided 52100 tool steel front sprocket\u003c\/strong\u003e for maximum durability. A Japanese non-O-ring chain with master link keeps rolling resistance at a minimum while making swaps and maintenance simple. Unlike rubber-lined sprockets that trap dirt and mud between chain links, this kit is designed for \u003cstrong data-start=\"1094\" data-end=\"1127\"\u003epure efficiency and long life\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1132\" data-end=\"1588\"\u003eThe conversion maintains OEM motor alignment and gear ratio, with precision machining that extends sprocket life and keeps performance smooth at high RPM. It’s louder than a belt — no avoiding that — but no louder than any other chain kit. And if you want to quiet it down, you can fit an O-ring chain (at the cost of some performance). From stock power setups to high-output EBMX, Sotion, or Torp builds, this kit is \u003cstrong data-start=\"1550\" data-end=\"1585\"\u003erace-proven and built for abuse\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1692\" data-start=\"1546\"\u003e⚠️ \u003cstrong data-end=\"1570\" data-start=\"1549\"\u003eImportant Notice:\u003c\/strong\u003e \u003cstrong\u003e \u003c\/strong\u003eWhen installing, make sure your chain tension is loose not tight! Any chain drive that you install should have loose chain tension! Please check the fitment tab for important motor info. \u003ca rel=\"noopener\" title=\"More Info Here\" href=\"https:\/\/gritshift.com\/pages\/primary-drive-info?_pos=1\u0026amp;_sid=0c3890503\u0026amp;_ss=r\" target=\"_blank\"\u003e(MORE INFO HERE)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-start=\"1631\" data-end=\"1645\"\u003e\u003cstrong data-start=\"1631\" data-end=\"1643\"\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1648\" data-end=\"1704\"\u003e7075 T6 billet aluminum rear sprocket (black anodized)\u003c\/li\u003e\n\u003cli data-start=\"1707\" data-end=\"1776\"\u003e52100 tool steel front sprocket with nitrided black surface coating\u003c\/li\u003e\n\u003cli data-start=\"1779\" data-end=\"1840\"\u003eLightest primary kit on the market for maximum performance\u003c\/li\u003e\n\u003cli data-start=\"1843\" data-end=\"1904\"\u003e42-link Japanese non-sealed chain with master link included\u003c\/li\u003e\n\u003cli data-start=\"1907\" data-end=\"1953\"\u003eMaintains OEM gear ratio and motor alignment\u003c\/li\u003e\n\u003cli data-start=\"1956\" data-end=\"2022\"\u003ePrecision-machined for long sprocket life and smooth performance\u003c\/li\u003e\n\u003cli\u003eBest Efficiency Rated Chain Drive on The Market\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/J-YEmDuR_80?si=LshXqBSJ_8vJrs8p\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSur Ron LBX\u003c\/li\u003e\n\u003cli\u003eSegway X160 \/ X260\u003c\/li\u003e\n\u003cli\u003eE Ride Pro-S\u003c\/li\u003e\n\u003cli\u003eE Ride Pro-SS \/ 2.0\u003c\/li\u003e\n\u003cli\u003eVentus ONE+\u003c\/li\u003e\n\u003cli\u003e79Bike Falcon Pro \/ GT\u003c\/li\u003e\n\u003cli style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eEBMX XLB Series Motors MUST be properly shimmed, or else you will have side wear to the sprockets!! \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notice: \u003c\/strong\u003eWhen installing, make sure your chain tension is not tight! Any chain drive that you install should have loose chain tension!\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0511\/3964\/1496\/files\/Heavy_Hitter_420_Primary_Chain_Drive_Conversion_Kit_Assembly_Guide.pdf?v=1772646714\"\u003eDownload Tech Sheet (Assembly \u0026amp; Torque Specs)\u003c\/a\u003e\u003c\/p\u003e","brand":"GritShift","offers":[{"title":"Default Title","offer_id":43115288133699,"sku":"SQ6942420","price":99.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/3180\/7555\/files\/Heavy_Hitter_Lightweight_420_Primary_Chain_Drive_Conversion_Kit_2.jpg?v=1775239318","url":"https:\/\/yzwarehouse.us\/products\/heavy-hitter-420-primary-chain-drive-conversion-kit","provider":"YZWAREHOUSE","version":"1.0","type":"link"}