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