{"product_id":"ceramicspeed-shimano-grx-rx-820-12s-pulley-wheels-2x12-jockey-wheels-black","title":"CeramicSpeed Shimano GRX RX-820 12s Pulley Wheels 2x12 Jockey Wheels Black","description":"\u003cp\u003eUpgrade your Shimano GRX RX-820 2x12 drivetrain with the CeramicSpeed Pulley Wheels, engineered to deliver exceptional precision and durability. Crafted from anodized aluminum, the set includes an 11-tooth upper and a 13-tooth lower pulley, designed to optimize shifting performance and reduce drivetrain friction. These pulley wheels are built with hand-assembled CeramicSpeed hybrid ceramic bearings, ensuring smoother rotation and enhanced efficiency for every pedal stroke.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in two finishes, you can choose between the standard version backed by a four-year warranty or the premium coated surface treatment, which comes with a lifetime warranty for lasting reliability. Developed and hand built in Denmark, these components embody superior craftsmanship and attention to detail, making them a perfect upgrade for gravel riders seeking to maximize their bike’s performance.\u003c\/p\u003e\n\n\u003cp\u003eThe package includes the pulley wheels, a spacer kit for easy installation, a 10ml bottle of CeramicSpeed UFO Oil to maintain bearing efficiency, and a decal to complete the look. Transform your rear mech’s performance with these high-quality jockey wheels designed specifically for Shimano derailleur systems.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eImproving shifting precision and smoothness on Shimano GRX 820 2x12 drivetrains\u003c\/li\u003e\n  \u003cli\u003eReducing drivetrain friction for enhanced pedaling efficiency\u003c\/li\u003e\n  \u003cli\u003eDurability and long-lasting performance with anodized aluminum construction\u003c\/li\u003e\n  \u003cli\u003eEasy maintenance with included spacer kit and specialized UFO Oil\u003c\/li\u003e\n  \u003cli\u003eReliable performance backed by strong warranty options\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatibility with non-Shimano derailleur systems\u003c\/li\u003e\n  \u003cli\u003eUse outside of gravel or compatible road cycling disciplines\u003c\/li\u003e\n  \u003cli\u003eRiders seeking pulley wheels without ceramic bearing technology\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill these pulley wheels fit all Shimano GRX models?\u003c\/strong\u003e\u003cbr\u003eThese pulley wheels are specifically designed for Shimano GRX RX-820 2x12 systems, so compatibility with other models may vary.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the standard and coated finishes?\u003c\/strong\u003e\u003cbr\u003eThe standard finish comes with a four-year warranty, while the coated surface treatment offers enhanced durability and a lifetime warranty.\u003c\/p\u003e","brand":"CeramicSpeed","offers":[{"title":"Black","offer_id":45965247316143,"sku":"114120","price":214.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/114120_a6d6974b-e424-4f77-8e11-bd171fa05512.jpg?v=1768532740","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/ceramicspeed-shimano-grx-rx-820-12s-pulley-wheels-2x12-jockey-wheels-black","provider":"Swinnerton Cycles","version":"1.0","type":"link"}