CeramicSpeed Alpha Bottom Bracket - BB90 | Road | Ceramic | PF37-90-24

Ceramic bottom bracket for a completely new riding experience.

The new generation of CeramicSpeed Alpha bottom brackets sets completely new standards for performance, durability and user-friendliness. Every element has been redesigned and optimized from the ground up. The aim was to develop a lighter, more durable bottom bracket without compromising on friction - while still simplifying the design.

The Alpha bottom bracket impresses with minimal frictional resistance. Precision ceramic balls in hardened, corrosion-resistant stainless steel bearing races ensure maximum efficiency and consistent performance with every pedal stroke. Optimized dust covers and seals reliably keep out dirt and moisture, allowing long distances to be covered without maintenance. This is backed up by a lifetime manufacturer's warranty.

The simplified, uniform interface for balls and seals makes selection, installation and maintenance extremely easy and adapts effortlessly to all common bearing standards.

Highlights of the CeramicSpeed Alpha bottom bracket

• low rolling resistance thanks to CeramicSpeed balls
• hardened, corrosion-resistant stainless steel races
• optimized seals and dust covers
• 500% higher protection against contamination without additional drag
• simple installation & maintenance with standardized interfaces
• lifetime manufacturer's warranty
• handmade in Denmark

Technical details

• type: S61805
• bearing seat: pressed, directly into the frame (BB90)
• outer diameter: 37 mm
• inner diameter: 25 mm
• width: 7 mm
• reducing sleeves for 24 mm shafts