Sram's brilliant 11spd systems for mountain bike and 1X road/cyclocross groups are rugged and dependable, but the stock pulleys are utter rubbish. Don't take your word for it, check for yourself. We know what you'll find: Draaaaaaaaaaaaaaaag. Lots and lots of wattage sapping, slow-you-down drag. You will feel the difference made by our BBInfinite Ceramitech pulleys. from the first pedal stroke.
Each ceramic bike pulley set features DELRIN® 510GR construction, a fiber reinforced polymer specially suited to high strength situations where resistance to deflection is paramount, such as every time you shift. The 12T Sram MTB pulleys are in-molded for absolute security and durability as well as ease of maintenance. And speaking of maintenance; every set comes with a tube of Kluber IsoFlex Topas NB 52 grease and an extra set of seals to keep your pulley set running like new season after season.
These 12T Sram MTB pulleys blow stock pulleys away when it comes to spin, and the oversize diameter reduces chain pin working angles to eliminate every bit of friction possible.
It's a mystery to us why major manufacturers ignore bottom bracket and derailleur pulley performance and continue to pump out under-performing products that sap wattage from riders who are working like mad to get faster. You have the BBInfinite bottom bracket with Ceramitechs already, and you've experienced the tremendous gains. It's time for another step forward toward your goal. Get the most out of your ride by riding Ceramic derailleur pulleys
BBInfinite's 12T ceramic bike pulley set for Sram Road 1X and MTB has a 1-Year warranty.