{"product_id":"rear-derailleur-12-speed-shimano-grx-shadow","title":"Rear Derailleur 12 Speed Shimano GRX RD-RX820","description":"\u003cp\u003eThe Shimano GRX RD-RX820 Rear Derailleur delivers silent, secure, and reliable 12-speed shifting engineered specifically for demanding gravel and mixed-surface riding.\u003c\/p\u003e\n\u003cp\u003eConquer rough fire roads and smooth tarmac alike with confidence.\u003c\/p\u003e\n\u003cp\u003eThis 12-speed gravel derailleur features integrated Shimano Shadow RD+ technology and an adjustable chain stabilizer to eliminate annoying chain slap and drastically reduce the risk of dropped chains.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSilent \u0026amp; Secure on Rough Terrain: Built-in adjustable chain stabilizer keeps your chain taut and quiet over roots, rocks, and ruts.\u003c\/li\u003e\n\u003cli\u003eOn\/Off Switch: Easily toggle the stabilizer match-up for smooth pavement efficiency or rugged trail security.\u003c\/li\u003e\n\u003cli\u003eWide Range Compatibility: Optimised for 12-speed cassettes (11-34T and 11-36T) to maintain an ideal cadence anywhere you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSeries: GRX 12-speed\u003c\/li\u003e\n\u003cli\u003eRear Speeds: 12\u003c\/li\u003e\n\u003cli\u003eTop Sprocket: Max. 11T \/ Min. 11T\u003c\/li\u003e\n\u003cli\u003eLow Sprocket: Max. 36T \/ Min. 34T\u003c\/li\u003e\n\u003cli\u003eMax Front Chainring Difference: 17T\u003c\/li\u003e\n\u003cli\u003eTotal Capacity: 42T\u003c\/li\u003e\n\u003cli\u003eAverage Weight: 270g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":51342434435381,"sku":"4550170303617","price":179.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/3468\/6261\/files\/shimano-RD-RX820-rear-derailleur.png?v=1789106629","url":"https:\/\/ivanhoecycles.com.au\/products\/rear-derailleur-12-speed-shimano-grx-shadow","provider":"Ivanhoe Cycles","version":"1.0","type":"link"}