{"product_id":"ceramicspeed-ospw-pulley-wheel-aero-alpha-system-for-shimano-9250-8150-coated-races-aluminum-pulley-carbon-cage-black","title":"CeramicSpeed OSPW Pulley Wheel Aero Alpha System for Shimano 9250\/8150 - Coated Races, Aluminum Pulley, Carbon Cage, Black","description":"\u003cp\u003eThe CeramicSpeed OSPW Aero ALPHA system for Shimano 9250\/8150 derailleurs updates the fastest proven aero derailleur cage to include CeramicSpeed's patent pending ADR bearing protection and quiet performing ALPHA disc with composite tooth profile pulleys. Furthermore, a speed defying pinstripe graphic has been added for a splash of visual motion.\u003c\/p\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eInjection Molded Carbon Fiber reinforced PA Aero cage reduces aerodynamic drag on the rear derailleur by up to 60% and offers new levels of strength and durability\u003c\/li\u003e\n\u003cli\u003eAlpha disc pulleys are paired with a composite, narrow-wide tooth profile to help prevent debris from external objects getting stuck\u003c\/li\u003e\n\u003cli\u003eThe 13-tooth upper and 19-tooth lower Alpha pulley wheels feature ADR bearing protection that completely encloses the bearings\u003c\/li\u003e\n\u003cli\u003eThis OSPW System has handbuilt CeramicSpeed coated bearings installed in each pulley\u003c\/li\u003e\n\u003cli\u003eGrade 3 Silicon Nitride ball bearings are 400% smoother, 128% harder and 58% lighter than standard steel balls normally used in the bicycle industry\u003c\/li\u003e\n\u003cli\u003e4 customizable spring tension settings for optimal setup\u003c\/li\u003e\n\u003cli\u003eCompatible with Shimano Road Dura-Ace R9250 and Ultegra R8150 12-speed rear derailleurs\u003c\/li\u003e\n\u003cli\u003eIt is not possible to add these pulleys to a previous generation OSPW Aero cage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CeramicSpeed","offers":[{"title":"Default Title","offer_id":45057016168587,"sku":"113805","price":799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/8359\/1819\/files\/DP0045_a0307f86-d0b0-4ad5-8482-2b1828bf1ce9.jpg?v=1769671680","url":"https:\/\/www.stottsbicycles.com\/products\/ceramicspeed-ospw-pulley-wheel-aero-alpha-system-for-shimano-9250-8150-coated-races-aluminum-pulley-carbon-cage-black","provider":"Stotts Bicycles","version":"1.0","type":"link"}