Running a SRAM DUB crankset in a BSA threaded frame requires a bottom bracket built specifically for the 29mm spindle diameter, and that's exactly the gap Wheels Manufacturing's BSA English Threaded Bottom Bracket fills. The two machined aluminum cups thread into a standard 1.37" x 24 TPI shell and position Enduro 6806/29 ABEC-3 sealed bearings outboard, giving DUB cranks a stable home in frames that weren't originally spec'd around SRAM's oversized spindle standard. It's a common upgrade path for riders switching to a Red, Force, Rival, or Apex AXS crankset on an older BSA frame.

The Enduro cartridge bearings do the real work here. ABEC-3 grade with silicone dust seals on each side, they're fully serviceable and replaceable when the time comes rather than throwaway units bonded into the cups. That matters over the long haul because bottom bracket bearings are wear items, and being able to press in fresh bearings instead of buying a whole new bottom bracket keeps the cost of ownership reasonable. The aluminum cups themselves are anodized and machined in-house at Wheels Manufacturing's Colorado facility.

Frame compatibility covers 68mm, 73mm, and 100mm BSA shells. The kit includes a plastic center sleeve for standard 68/73mm shells and gets installed without the sleeve for 100mm fat bike shells. Wheels Manufacturing supplies a full complement of crank spindle spacers in the box — two 0.5mm, two 1.0mm, and one 2.5mm — which covers the setup range you'll need for proper preload and chainline across different DUB crank configurations.... Read More