{"product_id":"shimano-grx-rd-rx822-1x12-speed-rear-derailleur","title":"SHIMANO GRX RD-RX822 1x12-SPEED REAR DERAILLEUR","description":"\u003ch3\u003eThe Shimano GRX RD-RX822 is a 12-speed rear derailleur engineered for gravel and mixed-terrain riding.\u003c\/h3\u003e\n\u003cp\u003eIts integrated Shadow Plus chain stabilizer reduces bounce and noise on rough surfaces, delivering smooth, precise shifts when you need them most. The low-profile design combines lightweight cold-forged aluminium construction with exceptional durability. Compatible with 12-speed Hyperglide+ chains, it supports cassettes up to 10-51T, making it ideal for single-chainring setups that demand versatile gearing across unpredictable terrain.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSilent and uninterrupted rear shifting on rough terrain\u003c\/li\u003e\n\u003cli\u003eAdjustable chain stabilizer prevents chain slapping and drops\u003c\/li\u003e\n\u003cli\u003eSHIMANO SHADOW RD+\u003c\/li\u003e\n\u003cli\u003eSmooth and reliable mixed surface shifting\u003c\/li\u003e\n\u003cli\u003eGravel-tuned clutch tension\u003c\/li\u003e\n\u003cli\u003eCompatible with current road DUAL CONTROL LEVER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD-RX822-GS\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e45T max cog size\u003c\/li\u003e\n\u003cli\u003eWorks with 12-speed 10-45-teeth cassette\u003c\/li\u003e\n\u003cli\u003eBetter ground clearance (shorter cage)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRD-RX822-SGS \u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e51T max cog size\u003c\/li\u003e\n\u003cli\u003eWorks with 12-speed 10-51 teeth cassette\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse: \u003c\/strong\u003eGravel, Cyclocross\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroup:\u003c\/strong\u003e GRX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel: \u003c\/strong\u003eRD-RX822\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount: \u003c\/strong\u003eDirect attachment (Conventional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e Shadow RD+\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGradations: \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eGS-Type 1x12-speed (10-45 cassette)\u003c\/li\u003e\n\u003cli\u003eSGS-Type 1x12-speed (10-51 cassette)\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible chain: \u003c\/strong\u003e12-speed HG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. teeth large sprocket: \u003c\/strong\u003e45T (GS) \/ 51T (SGS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin. teeth large sprocket: \u003c\/strong\u003e45T (GS) \/ 51T (SGS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. teeth small sprocket: \u003c\/strong\u003e10T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin. teeth small sprocket: \u003c\/strong\u003e10T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Front Difference:\u003c\/strong\u003e 0T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Capacity: \u003c\/strong\u003e34T (GS) \/ 41T (SGS)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePulley cage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGS medium\u003c\/li\u003e\n\u003cli\u003eSGS long\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaterial\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAluminium\u003c\/li\u003e\n\u003cli\u003eSteel\u003c\/li\u003e\n\u003cli\u003eGFRP\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eColour\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWeight\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. 290g\/GS\u003c\/li\u003e\n\u003cli\u003eApprox. 288g\/SGS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eContents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Shimano GRX 1x12-speed RD-RX822 Rear Derailleur\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SHIMANO","offers":[{"title":"GS","offer_id":56849881137527,"sku":"RDRX822GS","price":110.99,"currency_code":"GBP","in_stock":true},{"title":"SGS","offer_id":56849881170295,"sku":"RDRX822SGS","price":110.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/2350\/2370\/files\/rdrx822sgs.jpg?v=1772708574","url":"https:\/\/www.allterraincycles.co.uk\/products\/shimano-grx-rd-rx822-1x12-speed-rear-derailleur","provider":"allterraincycles","version":"1.0","type":"link"}