{"product_id":"rd-r4000-tiagra-11-speed-rear-derailleur-175rh","title":"RD-R4000 Tiagra 11-speed rear derailleur","description":"\u003ch2\u003eShimano RD-R4000 Tiagra 11-speed rear derailleur\u003c\/h2\u003e\n\n\u003cp\u003eUpgrade your drivetrain with the Shimano Tiagra 11-speed rear derailleur, designed to deliver reliable, high-performance shifting at an excellent value. Featuring a wide link design for increased rigidity and longer service life, it provides precise and dependable gear changes even under load. The advanced light-action mechanism reduces friction when shifting up or down the cassette, creating smoother, more responsive performance on every ride. A lightweight alloy body and outer link help reduce overall weight without sacrificing strength or durability, while two fluorine-coated link pin bushings further enhance low-friction operation. Designed for use with double chainsets and supporting up to a 36-tooth cassette, this rear derailleur is compatible with 11-speed chains, CS-RS400-11-46 cassettes, and ST-R4020 or ST-U6030 STI shifters, making it a dependable upgrade for riders seeking smooth, efficient shifting and long-lasting performance.\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"36T \/ Black","offer_id":54308205330778,"sku":"2013679","price":64.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/0827\/5290\/files\/Shimano-RD-R4000-Tiagra-11-speed-rear-derailleur-Black.jpg?v=1781539281","url":"https:\/\/checkout.sigmasports.com\/products\/rd-r4000-tiagra-11-speed-rear-derailleur-175rh","provider":"Sigma Sports","version":"1.0","type":"link"}