{"product_id":"dirtybike-rk-420-primary-chain-conversion-e-ride-pro-sr","title":"DirtyBike RK 420 Primary Chain Drive Conversion Kit – E Ride Pro SR","description":"\u003cp\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e⚠ Warning: Read before purchasing. Returns will not be accepted after the kit is installed.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSome E Ride Pro 3.0 and SR models have a motor interference issue with this kit. As the primary chain is adjusted, the motor moves rearward and may contact the final drive chain. It may be necessary to grind one or two motor fins to clear the interference. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003eIf you are not comfortable with this, do not purchase this kit.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0281\/6212\/9968\/files\/ERP-SR-FINAL-DRIVE-MOTOR-INTEREARANCE.jpg?v=1763575636\" alt=\"E Ride Pro SR motor interference diagram\" width=\"362\" height=\"342\"\u003e\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eDirtyBike RK 420 Primary Belt-to-Chain Conversion Kit\u003c\/strong\u003e replaces the stock primary belt on the E Ride Pro SR with a heavy-duty \u003cstrong\u003eRK GB420MXU sealed X-ring chain\u003c\/strong\u003e — one of the strongest and quietest 420 chains available. Designed for serious off-road riders in dusty, sandy, or muddy conditions where stock belts are prone to slippage and premature failure. Maintains stock gear ratio.\u003c\/p\u003e\u003cp\u003eThe master link allows easy installation and future chain replacement without removing the swingarm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Some E Ride Pro motors have shallow woodruff keyways. It may be necessary to remove 5mm from one side of the woodruff key for proper fitment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReplaces stock primary belt with durable RK GB420MXU sealed chain\u003c\/li\u003e\n\u003cli\u003eIdeal for off-road riding over 16Kw — dusty, sandy, and muddy conditions\u003c\/li\u003e\n\u003cli\u003eMaintains stock gear ratio\u003c\/li\u003e\n\u003cli\u003eMaster link included for easier installation and future chain service\u003c\/li\u003e\n\u003cli\u003eChain replaceable without removing the swingarm\u003c\/li\u003e\n\u003cli\u003eFitment: E Ride Pro SR (check interference note above for 3.0\/SR models)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eResources:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.youtube.com\/watch?v=PeSjFswL2Ao\u0026amp;t=30s\" target=\"_blank\" rel=\"noopener\"\u003eInstallation Video\u003c\/a\u003e  |  \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0281\/6212\/9968\/files\/ChainDriveBuyersGuide3.pdf?v=1694190598\" target=\"_blank\"\u003eBuyers \u0026amp; Maintenance Guide\u003c\/a\u003e  |  \u003ca href=\"https:\/\/americansurron.com\/collections\/tools-for-surron-and-talaria\/products\/dirtybike-mid-shaft-alignment-tool-for-sur-ron-ultra-bee\" target=\"_blank\"\u003eInstallation Alignment Tool\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eChain Selection Guide\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eChain Type\u003c\/th\u003e\n\u003cth\u003eRecommended Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e219H Standard\u003c\/td\u003e\n\u003ctd\u003eOn-road and light off-road with stock power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e219H RK O-ring \/ Non-O-ring\u003c\/td\u003e\n\u003ctd\u003eOn-road and off-road up to 16Kw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e420 Sealed X-ring (this kit)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eOff-road over 16Kw\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e420 Non-O-ring\u003c\/td\u003e\n\u003ctd\u003eRacing only — very loud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.5 lbs  |  \u003cstrong\u003eHS Code:\u003c\/strong\u003e 871410  |  \u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e US\u003c\/p\u003e","brand":"eDirtyBike","offers":[{"title":"Default Title","offer_id":48059835285745,"sku":"sku-53281827782966","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/1348\/7857\/files\/Surron-LBX-db-420RK-gold-replacement-chain_e992213d-448e-4d14-bafd-cd3dc6259b77.jpg?v=1776609094","url":"https:\/\/howlingmoto.com\/products\/dirtybike-rk-420-primary-chain-conversion-e-ride-pro-sr","provider":"Howling Moto","version":"1.0","type":"link"}