{"product_id":"shimano-rd-m7120-slx-12-speed-shadow-sgs-rear-derailleur-for-double-drivetrain","title":"Shimano RD-M7120 SLX 12-Speed Shadow SGS Rear Derailleur for Double Drivetrain","description":"\u003cp\u003eThe Shimano RD-M7120 SLX 12-Speed Rear Derailleur Shadow SGS is engineered for mountain bikers who demand precision and reliability in every ride. Designed specifically for 12-speed double drivetrains, this rear mech combines advanced technology with robust materials to deliver smooth and consistent shifting performance. Its Shadow Plus design lowers the profile, reducing the risk of damage on rough trails while ensuring ultra-light shifting action. The integration of a chain stabilizing switch minimizes chain bounce, keeping your ride stable and quiet even over the toughest terrain.\u003c\/p\u003e\n\n\u003cp\u003eBuilt with durability in mind, the derailleur features a cold-forged alloy body and a carbon fiber outer pulley cage that balances strength and weight savings. The sealed 13T bearing pulleys and fluorine-coated link pin bushings reduce friction, contributing to a smooth and efficient drivetrain. Direct cable routing prevents snagging on trail obstacles, while the rubber bumper on the pulley cage enhances silent operation. Whether you’re climbing steep inclines or navigating technical descents, this rear derailleur offers the reliability and responsiveness you need.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimized for 12-speed double drivetrain setups, providing precise shifting control\u003c\/li\u003e\n  \u003cli\u003eReduces chain bounce with Shadow Plus technology, ensuring stable and quiet rides\u003c\/li\u003e\n  \u003cli\u003eDurable materials like cold-forged alloy and carbon fiber for long-lasting performance\u003c\/li\u003e\n  \u003cli\u003eDirect cable routing minimizes cable snags on rough terrain\u003c\/li\u003e\n  \u003cli\u003eLightweight design without compromising strength, improving overall bike handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-speed or 1x drivetrain configurations\u003c\/li\u003e\n  \u003cli\u003eUse with sprockets larger than 45T front difference exceeding 10T\u003c\/li\u003e\n  \u003cli\u003eCasual riding where advanced shifting performance is unnecessary\u003c\/li\u003e\n  \u003cli\u003eApplications requiring compatibility outside of Shimano SLX or similar 12-speed systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this derailleur compatible with 1x drivetrains?\u003c\/strong\u003e\u003cbr\u003eThe Shimano RD-M7120 SLX is specifically designed for 12-speed double drivetrains and is not optimized for 1x setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum sprocket size supported?\u003c\/strong\u003e\u003cbr\u003eThis derailleur supports a maximum low sprocket size of 45T and a maximum front difference of 10T, suitable for most double chainring configurations.\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":45478631801007,"sku":"RDM7120SGS","price":54.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1559315794-75654000.jpg?v=1768524504","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-rd-m7120-slx-12-speed-shadow-sgs-rear-derailleur-for-double-drivetrain","provider":"Swinnerton Cycles","version":"1.0","type":"link"}