A creak-free, heavy-duty bottom bracket for 68–73mm T47 frames running SRAM DUB or DUB Wide cranks. Enduro merges bearing and cup into one 440C stainless part that threads straight into the shell.

Highlights

• Maxhit design: bearing and cup are one stainless part that threads straight into the frame, with no separate aluminium cups to creak
• Room for much larger balls, giving more than double the load capacity of aluminium-cup bottom brackets
• Machined and ground entirely from 440C stainless steel
• Proprietary double-lip groove seals packed with Enduro's high-pressure grease
• A selection of seals and spacers included for installation
• Limited Lifetime Warranty, kept with an annual clean and re-grease

How Maxhit works

Most bottom brackets carry their bearings in separate aluminium cups, and every joint between cup, bearing and frame is a place for a creak to start. Maxhit merges bearing and cup into a single 440C stainless component that threads directly into your frame's bottom bracket shell. Dropping the extra cup frees up space for much larger balls, which is where the load capacity comes from.

Servicing and fitting

Enduro asks for an annual service by a qualified mechanic: clean the bearings and re-grease them with Enduro Speed Grease (GR-011) to keep the lifetime warranty. Enduro lists the BRK-BKSM 29 rebuild kit for servicing this bottom bracket.

Our Marrickville workshop can install this bottom bracket and carry out the annual service. Fitting is a separate workshop service and is not included in the price.

Tools Enduro lists for installation

• BBT-52x16-29 Pro Cup socket tool for T47 bottom brackets and SRAM DUB cranksets
• BBT-010 bottom bracket flat wrench (44mm and 52mm x 16-spline)
• GR-009 Enduro MAX bearing grease

Compatibility & fit

• Bottom bracket shell: T47 External, 68–73mm wide
• Crankset spindle: SRAM DUB / 29mm
• Suits SRAM DUB and DUB Wide crankset setups