Wolf Tooth

T47 External Bottom Bracket - For SRAM DUB Spindle

The Wolf Tooth T47 External Bottom Bracket for SRAM DUB is built for riders who expect their drivetrain to perform flawlessly, mile after mile. Designed and machined in Minnesota, this bottom bracket combines precision engineering with premium materials to deliver a smooth, quiet, and durable ride across all conditions.

By pairing custom-hardened chrome steel bearings with a highly effective multi-layer sealing system, it resists wear, contamination, and creaking better than typical bottom brackets. The ZNA-coated bearing races offer corrosion resistance that rivals stainless steel while maintaining lower rolling resistance for efficient power transfer. Wolf Tooth’s unique use of bushings between the bearing and crank spindle eliminates metal-on-metal contact—one of the main causes of noise and premature wear—resulting in a bottom bracket that stays quiet and runs smoother for longer.

Ideal for riders who want lasting performance with easy serviceability, this bottom bracket is a reliable choice for gravel, road, and mountain setups using SRAM DUB cranksets.

• Precision-engineered in the USA for SRAM DUB spindles and T47 external shells
• Custom-hardened chrome steel bearings with ZNA coating for reduced friction and outstanding corrosion resistance
• Advanced sealing system combines multiple seals and o-rings for reliable performance in wet or dusty environments
• Noise-free design with bushings that eliminate metal-on-metal contact and extend bearing life
• Adjustable-width internal sleeve fits 68mm–73mm T47 shells for versatile frame compatibility