CeramicSpeed Trek BB90 Bottom Bracket
The CeramicSpeed BB90 bottom bracket offers bearings with extremely low friction, improved power transfer, and a service life that far exceeds traditional steel bearings.
- Grade 3 Silicon Nitride balls
- Coated races increase bearing service life by increasing hardness of race and reducing corrosion
- Reinforced polyamide cage and non-contact seals
- Hand built in Denmark
- CeramicSpeed products with coated bearings include a 6-year warranty