{"product_id":"520-conversion-kit-quick-acceleration-yamaha-yzf-r1m-2015-2025-15-43","title":"520 Conversion Kit, Quick Acceleration, Yamaha YZF-R1M 2015–2025 (15\/43)","description":"\u003c!-- isbk-recipe --\u003e\n\u003cp\u003eA chain and sprocket kit replaces the whole final drive at once: front sprocket, rear sprocket and chain. That is how these parts are meant to be replaced, because they wear together, and a kit takes the guesswork out of matching pitch, tooth counts and chain length.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConverts the Yamaha YZF-R1M (2015–2025) to 520 chain and quicker gearing, 15 \/ 43 (stock 16 \/ 41)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVortex 15T front sprocket, steel, Style 3291\u003c\/li\u003e\n  \u003cli\u003eVortex 43T rear sprocket, Style 654A: aluminum\u003c\/li\u003e\n  \u003cli\u003eD.I.D 520VX3 X-ring chain, 120 links, cut to 116 links for these sprockets (stock is 114). It comes with one master link: choose clip or rivet\u003c\/li\u003e\n  \u003cli\u003eFront sprocket, rear sprocket and chain in one order\u003c\/li\u003e\n  \u003cli\u003eModel-specific: check the fitment list for your bike\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFits\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eBike\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eKit gearing (front \/ rear)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYamaha YZF-R1M\u003c\/td\u003e\n\u003ctd\u003e2015–2025\u003c\/td\u003e\n\u003ctd\u003e15 \/ 43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003eStock is 16 \/ 41. This kit is one tooth smaller at the front and two larger at the rear: about 12% shorter overall gearing, so the bike pulls harder in every gear and tops out lower. A speedometer that reads from the gearbox or front sprocket will read fast. One down, two up is a common starting point, not the right answer for every bike or rider: ask us if you want a different setup.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eUnless the listing says otherwise, a kit is built for stock gearing. Check the fitment list and tooth counts before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eFrom the shop\u003c\/h3\u003e\n\u003cp\u003eWe highly recommend a rivet-type master link on any street bike. Fitting one takes a \u003ca href=\"\/collections\/chain-tools\"\u003echain riveting tool\u003c\/a\u003e, which you can buy from us in the shop or online, or we can install your chain and sprockets for you.\u003c\/p\u003e\n\u003c!-- \/isbk-recipe --\u003e","brand":"Indy Superbikes","offers":[{"title":"Aluminum \/ Gold \u0026 Black \/ Clip","offer_id":51105194705135,"sku":null,"price":272.07,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ Gold \u0026 Black \/ Rivet","offer_id":51105194737903,"sku":null,"price":272.07,"currency_code":"USD","in_stock":false},{"title":"Aluminum \/ Natural \/ Clip","offer_id":51105194770671,"sku":null,"price":255.19,"currency_code":"USD","in_stock":true},{"title":"Aluminum \/ Natural \/ Rivet","offer_id":51105194803439,"sku":null,"price":255.19,"currency_code":"USD","in_stock":false},{"title":"Aluminum \/ Silver \/ Clip","offer_id":51105194836207,"sku":null,"price":272.07,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/2016\/3567\/files\/image_0_0_a6415df8-b326-449b-915a-3d6e34179067.png?v=1792087740","url":"https:\/\/indysbk.com\/products\/520-conversion-kit-quick-acceleration-yamaha-yzf-r1m-2015-2025-15-43","provider":"Indy Superbikes","version":"1.0","type":"link"}