BB30 mountain bike bottom bracket shells are wider than road, 73mm, and share the same diameter; 42mm. The bottom bracket here allows you to install your SRAM or Quarq MTB crankset into a BB30 mountain bike.
This is how you get minimum drag, no adapters necessary. Our bearings are installed into aluminum cups that thread together for quiet durability. The cups come with CeramicSpeed Bearings installed, coated bearings and hardened-steel races for longer life and less bearing drag.
In The Box
- Bottom bracket with bearings installed.
- 2 dust covers.
- 2 1mm spacer.
- 2 0.5mm spacer.
- CeramicSpeed LongLife Grease.
- Sticker sheet.
Optimized Power Transfer
Longest Product Lifetime
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