Introduced in 2015 by Chris King and Argonaut, T47 represents a refined approach to bottom bracket design. Built on proven BSA threading principles, it delivers a secure fit that eliminates movement and the creaking issues common to Pressfit 30 systems. This T47-in-DUB variant is engineered specifically for 29mm spindle SRAM DUB cranks on T47-compatible frames. Its versatile design accommodates bottom bracket shells ranging from 68mm to 132mm in width, while also supporting 30mm cranks, 22/24mm GXP, and 24mm Shimano standards. Backed by a 2-year warranty, the Piston I.B internal bottom bracket combines compatibility with reliability for a smooth, creak-free ride.
Specifications:
CNC aluminium BB cups
ABEC7 high chrome vacuum degassed bearing steel races with quenching and tempering hardening
Grade 3 Si3N4 ceramic bearing balls
Nylon bearing retainer
Dual lips light contact rubber bearing seals
Frame requirements:
T47 thread standard frame
Shell inner diameter M47x1.0mm thread and width 85.5mm, 86.5mm
Crankset compatibility:
29mm spindle SRAM DUB cranksets.
Weight:
87g
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