T47A Shimano Road Bottom Brackets

  Info Installation Instructions Installation Video Specifications JUST THE FACTS: The BBInfinite T47A module for Shimano Road Crank Sets works with all Shimano road Hollowtech-II road crank sets, from Tiagra to Dura Ace. What’s more, this bottom bracket also works with most Shimano-pattern, 24mm spindle road crank sets on the market, such as the Rotor Aldhu, the SRM Origin, and many, many others. All BBInfinite T47A modules ship with the special tool, instructions, and hardware required for easy, trouble-free installation. Compatibility: • All BBcorrect T47A (asymmetric frames like the Factor OSTRO VAM) ABOUT OUR BEARING CHOICES: Ceramitech Bearings: Our Si3n4 hybrid ceramic bearings feature ultra-spherical silicon nitride balls matched to SAE 52100 chrome steel bearing races that have been processed with additional heat treatment and polishing steps. The result is a hybrid-ceramic bearing that lasts longer than any steel bearing with spin performance no steel bearing can rival