{"product_id":"shimano-rd-ty21-6-7-speed-mountain-bike-bicycle-rear-derailleur-ss-black","title":"Shimano RD-TY21 6\/7 Speed Mountain Bike Bicycle Rear Derailleur SS Black","description":"\u003cdiv\u003e\n\u003ch2\u003eShimano Tourney RD-TY21 6\/7-Speed Rear Derailleur (Black)\u003c\/h2\u003e\n\u003cp\u003eRestore smooth and reliable shifting to your bicycle with the Shimano Tourney RD-TY21 rear derailleur. Designed for 6-speed and 7-speed drivetrains, this component is an excellent choice for daily commuters, recreational cyclists, and youth bikes.\u003c\/p\u003e\n\u003cp\u003eConstructed with a sturdy steel body and friction-reducing resin guide wheels, the RD-TY21 delivers consistent, light-action shifting while keeping weight to a minimum. Its sleek black finish provides a clean, modern look that easily matches any bike frame.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eMounting Notice: The Shimano TY21 derailleur is typically available in two mounting styles (Direct\/Bolt-on or Bracket\/Hanger mount). Please verify which type your bicycle frame requires before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReliable Performance: Part of Shimano's trusted Tourney series, offering precise Shimano Index System (SIS) shifting.\u003c\/li\u003e\n\u003cli\u003eDurable Construction: Made with a tough steel body to withstand the rigors of everyday riding.\u003c\/li\u003e\n\u003cli\u003eSmooth Operation: Equipped with resin guide wheels (pulleys) for quiet running and reduced chain wear.\u003c\/li\u003e\n\u003cli\u003eLightweight Design: Weighs only approximately 268 grams, adding minimal weight to your drivetrain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eShimano\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eTourney\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eRD-TY21-Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Compatibility\u003c\/td\u003e\n\u003ctd\u003e6 \/ 7 Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSteel + Resin Guide Wheels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~ 268g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Shimano Tourney RD-TY21 Rear Derailleur (Black)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eImportant Fitment Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrivetrain Compatibility: Designed specifically for friction and indexed 6 or 7-speed mountain, hybrid, and city bike drivetrains.\u003c\/li\u003e\n\u003cli\u003eChain Sizing: When installing a new derailleur, ensure your bicycle chain is sized correctly and not excessively worn, as a worn chain can negatively impact shifting performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ebike Solution","offers":[{"title":"Default Title","offer_id":56812161991042,"sku":"EBAY-8-398211858201","price":11.44,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/3275\/6392\/files\/57_a1c4dd38-4389-45f2-b749-8c7a93e58172.jpg?v=1785493639","url":"https:\/\/ebikesolution.co.uk\/products\/shimano-rd-ty21-6-7-speed-mountain-bike-bicycle-rear-derailleur-ss-black","provider":"Ebike Solution","version":"1.0","type":"link"}