Tripeak T47 Bottom Bracket, Shimano Road Factor - 77.5Mm 700C x 28-32 Up to 1500 lumens output

Up to 1500 lumens output

In contrast to its predecessor

For even easier personalization

UNIRIB™ structure for performance grade calf support and vibration absorption

stronger due to the design

Tripeak T47 Bottom Bracket, Shimano Road Factor - 77.5Mm 700C x 28-32 Up to 1500 lumens outputProduct Description TRIPEAK Bottom Bracket T47 (Threaded) For Factor Frames, Shimano Hollowtech II 77. 5mm shell width T47 is a new bottom bracket standard that is becoming increasingly popular with custom bike manufacturers. The T stands for threaded and the 47 is the approximate outside thread diameter of the cup, in millimeters. T47 bottom bracket cups are not compatible with the much smaller BSA threaded BB shells. T47 is a newer bottom bracket