{"product_id":"55t-420-chain-sprocket-etm-rtr-sport","title":"55T 420 Chain Rear Sprocket for ETM RTR Sport | Howling Moto","description":"\u003ch2\u003eETM RTR Sport 55-Tooth 420 Chain Rear Sprocket\u003c\/h2\u003e\u003cp\u003eKeep your ETM RTR Sport running at peak performance with this precision-cut 55-tooth rear sprocket. Designed as a direct OEM-spec replacement for the 420 chain drivetrain, this sprocket delivers consistent power transfer and reliable engagement lap after lap — or mile after mile.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e55-tooth rear sprocket for optimized low-end torque and acceleration\u003c\/li\u003e\n\u003cli\u003eCompatible with 420 chain pitch — direct fit for ETM RTR Sport\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for accurate chain alignment and reduced wear\u003c\/li\u003e\n\u003cli\u003eLightweight construction at 0.8 lb for minimal unsprung weight\u003c\/li\u003e\n\u003cli\u003eOEM-spec replacement — no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth Count:\u003c\/strong\u003e 55T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain Pitch:\u003c\/strong\u003e 420\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e ETM RTR Sport\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVendor:\u003c\/strong\u003e Electro \u0026amp; Co\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhether you're replacing a worn sprocket or dialing in your gearing, this is the part that keeps your RTR Sport moving the way it was built to.\u003c\/p\u003e","brand":"Electro \u0026 Co","offers":[{"title":"Default Title","offer_id":48256311230705,"sku":"RTR_Sprocket_55t","price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/1348\/7857\/files\/Photoroom_20260326_110121__1.jpg?v=1780765530","url":"https:\/\/howlingmoto.com\/products\/55t-420-chain-sprocket-etm-rtr-sport","provider":"Howling Moto","version":"1.0","type":"link"}