Cycling Ceramic T47A Bottom Bracket Sram DUB Ø28.99mm 77mm

Made for the asymmetric T47A frame standard, this CyclingCeramic bottom bracket fits a 77 mm-wide threaded shell and supports SRAM DUB cranksets with a 28.99 mm spindle. It provides a direct replacement when worn or contaminated bearings cause noise, rough crank rotation, or unwanted lateral play. Before ordering, confirm that the frame uses the T47A interface rather than another T47 configuration, as the shared 47 mm thread diameter does not make the different shell formats interchangeable. Installation requires the appropriate T47 bottom-bracket tool, correct positioning of the asymmetric cups, clean frame threads, and tightening to the specified torque, followed by correct crank spacing and preload adjustment.

- Designed for asymmetric T47A threaded bottom-bracket shells
- Suitable for frames with a 77 mm bottom-bracket shell width
- Compatible with SRAM DUB crank spindles measuring 28.99 mm
- Ceramic bearings for supporting the crank spindle
- Ideal for replacing bearings with noise, roughness, or play
- Requires correct cup orientation, crank spacing, and preload adjustment

Specifications
Brand: CyclingCeramic
Model: T47A
Type: Bottom bracket
Product Family: SRAM
Bottom-Bracket Shell Type: Asymmetric threaded
Bottom-Bracket Shell Diameter: Ø47 mm
Bottom-Bracket Shell Width: 77 mm
Crank Interface: SRAM DUB
Crank Spindle Diameter: Ø28.99 mm
Bearing Type: Ceramic
Color: Black