Bottom Bracket SRAM DUB BSA100



SRAM DUB BSA MTB Bottom Bracket

SRAM DUB™ is the single replacement for 30mm and 24mm BB spindles options

Product featires - Bottom Bracket BSA "DUB"

  • Size (please select):
    • BSA 100mm
  • Suitable for: Cranks with "DUB"-Standard
  • Axle diameter: 28,99mm
  • Suitable bottom bracket tool: ParkTool BBT-79 (article no. 20022735)


  • black


  • 76g (Manufactuer information)

DUB Technology


DUB Installation


Forward thinking and backwards compatible DUB™ BB/Crank technology is the workhorse without restraint. Designed for the most discerning pros. And riders who set it and neglect it. DUB™ is compatible with all major bottom bracket standards. Offering better sealing than ever before, without having to make compromises to fit all frames. Yet it opens the door for a new crank spindle for the world’s all-time lightest crank set. It’s a new approach that embraces the old. And it’s about time.

After extensive research, Sram unifies the diameter of bike crankshafts and inner bearings to 28.99mm from 2018. The new bearing technology DUB (Durable Unifying Bottom Bracket) sets new standards from now on.

Set includes

  • 1 x MTB Bottom Bracket BSA "DUB" 100mm