T47-Internal Shimano Road Bottom Brackets

  Info Installation Instructions Installation Video Specifications JUST THE FACTS: The BBInfinite T47i 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 24mm internal 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 T47i Shimano internal bottom bracket modules ship with the special tool, instructions, and hardware required for easy, trouble-free installation. Compatibility: • All Trek T47 frames • All 86.5mm T47 frame bottom bracket shells • 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