CeramicSpeed BB ALPHA for BB86 SRAM DUB Road

 

The flagship ceramic bottom bracket purpose-built for SRAM DUB cranksets and BB86 press-fit frames. CeramicSpeed BB ALPHA features grade-3 Silicon Nitride ceramic balls and hardened stainless-steel races, hand-built in Denmark. With custom-engineered seals delivering 500% better moisture protection, ultra-low friction, a 10% weight reduction over previous generations at just 76g, and a lifetime warranty — this is the last bottom bracket you'll ever need.

 

The CeramicSpeed BB ALPHA is the brand's flagship bottom bracket, and this version is purpose-built for SRAM DUB cranksets with a 28.99mm spindle (including Red, Force, Rival, and Apex series) in BB86 press-fit frames featuring a 41mm bore and 86mm width.

Where most bottom brackets compromise between lifespan and price, the BB ALPHA is engineered around one principle: outlast the frame it's installed in. At its core are grade-3 Silicon Nitride (Si₃N₄) ceramic balls — CeramicSpeed's highest-grade in-house produced bearing balls — paired with hardened stainless-steel races to ensure ultra-low friction and exceptional longevity even under high-RPM demands.

The sealing system went through 28 design iterations, with laboratory testing confirming a 500% improvement in moisture and contamination resistance over conventional designs. Whether you ride in rain, humidity, or dusty conditions, the BB ALPHA keeps performing. A newly simplified spacer tube design makes installation faster and more straightforward, while simultaneously achieving a 10% weight saving over the previous generation — coming in at just 76g net, making it one of the lightest in the entire BB ALPHA range.

As a press-fit design, the BB86 standard is widely used in modern carbon fibre road frames. The cup material and structure have been optimised for both weight reduction and long-term stability once pressed into the frame shell.

Every BB ALPHA unit is hand-assembled by technicians in Denmark and backed by CeramicSpeed's lifetime warranty.

 

Key Features

Ultra-Low Friction: Grade-3 Silicon Nitride ceramic balls paired with hardened stainless-steel races deliver minimal rolling resistance, converting every watt of power into forward motion.

500% Moisture Protection: Custom-designed seals and precision dust covers, refined through 28 iterations, dramatically improve waterproofing and contamination resistance to extend bearing life.

Extreme Lightweight: Optimised cup material and a super-light spacer tube achieve a 10% weight reduction over the previous generation, with a net weight of just 76g — one of the lightest in the BB ALPHA lineup.

Corrosion Resistant by Design: Hardened stainless-steel races inherently resist corrosion without relying on additional coatings — particularly suited for Hong Kong's humid climate.

BB86 Press-Fit Design: Precision-engineered for 41mm bore, 86mm-wide press-fit frame shells, widely compatible with modern carbon fibre road bikes.

SRAM DUB Specific: Built for the SRAM DUB 28.99mm spindle, compatible with Red, Force, Rival, and Apex DUB crankset series.

Simplified Installation: Fewer spacer variants mean a more straightforward installation process with less room for error.

Lifetime Warranty: Backed by CeramicSpeed's official lifetime warranty programme for maximum peace of mind.

Hand-Built in Denmark: Each bearing unit is individually assembled and quality-inspected by Danish technicians.

 

In the Box

• CeramicSpeed BB ALPHA for BB86 SRAM DUB Road × 1
• UFO TECH All Round Bearing Grease 5ml × 1
• CeramicSpeed Decal × 1

Frame & Crank Compatibility

Compatible with all road bike frames featuring the BB86 press-fit bottom bracket standard (41mm bore, 86mm width), paired with SRAM DUB cranksets utilising a 28.99mm spindle diameter, including but not limited to Red, Force, Rival, and Apex series. Commonly compatible frame brands include Trek, Specialized, Cervélo, Giant, BMC, and more.

Recommended Accessories

• CeramicSpeed Bottom Bracket Tool Kit
• CeramicSpeed Preload Ring for SRAM DUB
• CeramicSpeed Crank Bolt Removal Tool