Give a GXP crank in a BB86 or BB92 frame a smoother, quieter home. BBB's BottomFit GXP uses a three-piece threaded design and self-aligning bearings to keep press-fit shells running silently.

Highlights

  • For SRAM GXP 24/22mm stepped spindles
  • Fits BB86 and BB92 press-fit shells
  • Three-piece threaded design
  • Self-aligning bearings for durability
  • Aluminium cups, 133g

Built to stay quiet

A bottom bracket is one of the most important parts for a smooth, silent bike. BottomFit's threaded construction and self-aligning bearings help prevent the creaks and early wear that misaligned press-fit cups can cause.

Durable materials

Cups are made from 6061-T6 and 7075-T6 aluminium, running chrome steel bearings sized for GXP's stepped 24mm drive-side and 22mm non-drive-side spindle.

Fitting

Fitting is a separate Tune Cycles workshop service, not included in the price; book at tunecycles.com.au/book.

Compatibility & fit

For BB86 and BB92 (Shimano-style press-fit, 41mm bore) shells of 86.5mm, 89.5mm or 92mm width, with SRAM GXP cranks (24mm/22mm spindle).

Covered by BBB's manufacturer's warranty against defects in materials and workmanship. BBB's warranty does not cover normal wear and tear, incorrect adjustment or misuse. For warranty support, return the item to Tune Cycles with your proof of purchase and we'll manage the claim for you. This is in addition to your rights under the Australian Consumer Law.
  • SRAM GXP 24/22mm spindle
  • BB86 / BB92 press-fit shells
  • Three-piece threaded design
  • Self-aligning chrome steel bearings
ModelBBO-29SR BottomFit BB86/92 GXP
Shell typeBB86, BB92 press fit
Shell width86.5mm, 89.5mm, 92mm
Shell diameter41mm
Spindle diameter24/22mm (GXP)
Materials6061-T6 and 7075-T6 aluminium
BearingsChrome steel, self-aligning
Weight133g (BBB figure)
SKU BBB-BBO-29SR
Brand BBB