Bottom bracket Enduro Bearings Maxhit T47 Internal SRAM DUB Stainless Steel

The BKSM-8134 Maxhit bottom bracket kit is made from 440C stainless steel. It is designed for T47 Internal 29mm frames and SRAM DUB crank axles.

For T47 frames with an M47 x 1 thread and SRAM DUB 28.99 mm axles. Features oversized-diameter bearings. A lifetime warranty applies with annual maintenance, including cleaning and regreasing the bearings.

Installation and servicing tools

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

Bearing removal, servicing, and installation tools

• BBT-52x16-29 – Pro Cup socket tool for T47 bottom brackets and SRAM DUB cranksets.
• BBT-010 – bottom bracket flat wrench for 44mm x 16-spline and 52mm x 16-spline fittings.
• BRK-BKSM 29 – rebuild kit for 29mm Maxhit bottom brackets.
• GR-011 – Enduro Speed bearing grease.

The installation and servicing process is demonstrated in the video “How to Service Maxhit Bottom Brackets”.

Maxhit is Enduro’s patented design that combines the bottom bracket bearings and cups into single components, eliminating the need for separate aluminium cups. The bearings thread directly into the bicycle’s bottom bracket shell. By eliminating separate mating parts, the design reduces the risk of creaking and other unwanted noises. It also makes room for much larger balls, giving Maxhit more than double the load capacity of other bottom brackets with aluminium cups.

Maxhit bottom brackets are machined and ground from 440C stainless steel. They use proprietary double-lip groove seals and Enduro high-pressure grease. The kit includes a selection of seals and spacers for proper installation in any T47-threaded bicycle frame. Designed for heavy-duty use, the bottom brackets come with a lifetime warranty and require periodic cleaning and greasing.

Because of the oversized bearing balls, Maxhit bottom brackets require a light preload for optimal adjustment. Some cranksets have a preload system built in; if yours does not, or if it is made of plastic, this kit includes a machined aluminium preload adjuster and a full complement of bottom bracket spacers for precise chainline adjustment.

Enduro offers solutions for the wide range of bottom bracket standards on the market, at different price and performance levels – from standard ABEC-3 bearings to XD15 ceramic hybrid bearings, which feature a lifetime guarantee.