CeramicSpeed T47a Threaded BB Alpha Gravel SRAM DUB Black MFPN=4000-55932 fluor-free

fluor-free

Color Black Defined Color Black Flat Protection Sidewall ISO Diameter 559 / 26" MTN ISO Width (mm) 112 Labeled Size 26 x 4

Refined cage shape results in faster and more accurate front shifts

your watch can send your name and location to your emergency contacts or connect you to the Garmin IERCC

CeramicSpeed T47a Threaded BB Alpha Gravel SRAM DUB Black MFPN=4000-55932 fluor-freeSave watts and ride faster with guaranteed lowest friction, optimized power transfer, and longest product lifetime Covered by a lifetime warranty Developed to improve upon the original CeramicSpeed BB, with every design element isolated, analyzed, and refinedeach part carefully evaluated for opportunities to increase performance 10% lighter DUB specific cups for right setup with less spacers Stainless steel races for longer durability Refined light