{"product_id":"ceramicspeed-ospw-x-coated-shimano-grx-rx820","title":"CeramicSpeed OSPW X Coated Shimano GRX RX820","description":"\u003cdiv\u003e\n  \u003cp\u003eThe \u003cstrong\u003eCeramicSpeed OSPW X Coated Shimano GRX RX820\u003c\/strong\u003e replaces your stock rear derailleur pulley cage with a system built specifically for gravel and cyclocross. CeramicSpeed designed the OSPW X around a 13-tooth upper and 19-tooth lower pulley wheel setup, and the platform has been proven at races like Paris-Roubaix, Strade Bianche, and CX World Cups — events that put a drivetrain through mud, grit, and repeated impact. It's built to bolt directly onto Shimano's 2x-specific GRX RX820 and RX825 derailleurs.\u003c\/p\u003e\n\n  \u003cp\u003eCeramicSpeed rates the OSPW X system at a 35-40% friction reduction over a stock pulley configuration, and this version steps up further with coated bearing races. The coating is a metallic layer roughly 75% harder than the hardened steel races underneath, applied in a 3-micron layer across the entire bearing surface. Combined with CeramicSpeed's ceramic balls, that hardness translates into high resistance to corrosion — even if the bearing gets hit with degreaser, water, or mud — and it's backed by a lifetime warranty rather than the standard bearing's shorter coverage.\u003c\/p\u003e\n\n  \u003cp\u003eThe cage itself is handbuilt with a custom molded carbon fiber construction for low weight without sacrificing durability, and four spring tension settings let you dial in cage tension to match the terrain you're riding. Every OSPW X system is handbuilt in Denmark, with the coated bearing sets matched and paired through the coating and quality control process. It's available in Black, Gold, and Red, and it's a direct upgrade for gravel and cyclocross riders running GRX RX820 who want measurably lower drivetrain friction without changing anything else about their setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"CeramicSpeed","offers":[{"title":"Black","offer_id":43571537018924,"sku":"113781","price":734.0,"currency_code":"USD","in_stock":true},{"title":"Gold","offer_id":43571537084460,"sku":"113783","price":734.0,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":43571537117228,"sku":"113782","price":734.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/ceramicspeed-ospw-x-coated-shimano-grx-rx820-8599043.jpg?v=1771295712","url":"https:\/\/ricycles.com\/products\/ceramicspeed-ospw-x-coated-shimano-grx-rx820","provider":"RA Cycles","version":"1.0","type":"link"}