Ceramicspeed BB Alpha for BB86 Shimano Road

Built to Outlast Frames. Engineered for Pure Efficiency.

The CeramicSpeed BB ALPHA represents a new generation of bottom bracket innovation, lighter, stronger, and engineered to perform flawlessly in the harshest riding environments. Designed to pair a 24mm Shimano crank with a BB86 press-fit frame, this bottom bracket is constructed to deliver unmatched longevity and ultra-low friction performance for road, triathlon, and track racing.

At the core of BB ALPHA are hardened stainless-steel bearing races paired with Grade 3 Silicon Nitride ceramic balls, hand-built to achieve world-leading smoothness and durability. Custom-engineered seals and precision dust covers provide up to 500% greater moisture protection, ensuring consistent performance in any climate or training conditions.

A re-engineered spacer tube and lightweight cup construction simplify installation, reduce weight by 10% compared to previous generations, and maintain the strict tolerances required for elite-level drivetrain alignment.

Backed by CeramicSpeed’s lifetime warranty, BB ALPHA is built to endure, designed not just to match the lifespan of your frame, but to outlast it.

Key Features

- Hardened stainless-steel races for extreme durability

- Grade 3 Silicon Nitride ceramic balls – world-class smoothness

- Up to 500% improved moisture protection

- Custom seals & precision dust covers reduce contamination

- 10% lighter cups and simplified spacer tube for faster installation

- Ultra-low friction for improved power transfer

- Lifetime warranty

Compatibility

- BB Type: BB86 (PressFit 41mm × 86mm)

- Crank Diameter: 24mm

- Crank Brands: Shimano & other 24mm spindle systems

- Ideal for Road, Triathlon, and Track applications

What's in the Box

- CeramicSpeed BB ALPHA – BB86 (Shimano Road)

- UFO All Round Grease (5 ml)

- CeramicSpeed Decal

- Documentation & setup guide

Specifications

- SKU: 115418

- Net Weight: 78 g

- Gross Weight: 193 g

- BB Type: BB86

- Crank Diameter: 24.0 mm

- Crank Width: 86.5 mm

- Discipline: Road / Triathlon / Track