Details
OSBB is the acronym for Specialized’s OverSized Bottom Bracket. It features a 46mm diameter and 61mm width shell. As it is unique, it requires a unique bottom bracket to mate BB30 cranks to it.
The cups come installed with one of two CeramicSpeed bearings. The Standard Bearing has ceramic CS balls and hardened-steel races. The Coated Bearing has the same balls running on hardened-steel races with a 3-micron thick metallic coating making the races harder and smoother, increasing service life and reducing friction.
- 2 cups with bearings installed.
- 2 3mm spacers.
- 2 1mm spacers.
- 2 0.5mm spacers.
- 2 dust covers.
- Wave washer.
- Telescoping spacer tube.
- 10ml All Round Grease.
- Sticker sheet.
Part Numbers
Option | UPC | MPN | Store SKU |
---|---|---|---|
Black / Standard | 5711050002399 | 101426 | CER56627492K |