Built to outlast your frame. Engineered for maximum efficiency.

The CeramicSpeed ALPHA Bottom Bracket is designed to deliver unmatched durability and ultra-low friction performance. Featuring hardened stainless-steel races, hand-built with Grade 3 Silicon Nitride ceramic balls, it combines long-term reliability with race-level efficiency.

Custom-engineered seals and precision dust covers provide up to 500% improved moisture protection, ensuring consistent performance in all conditions. A simplified spacer tube design and lighter cups allow for quick installation while achieving a 10% weight reduction compared to previous generations. Every CeramicSpeed ALPHA bottom bracket is backed by a lifetime warranty.

Designed to precisely match 24 mm axle cranks from Shimano and compatible brands with a threaded T47 frame (68 mm width) and outboard bearings, this bottom bracket delivers smooth, efficient power transfer for demanding riders.

In the Box

- CeramicSpeed ALPHA Bottom Bracket – T47/68 Shimano Road

- UFO TECH All Round Bearing Grease (5 ml)

- CeramicSpeed decal

Technical Specifications