CeramicSpeed BB ALPHA for T47/86 SRAM DUB Gravel

A bottom bracket that lasts longer than your frame. BB ALPHA relies on hardened stainless steel races, handcrafted with Grade 3 silicon nitride ceramic balls, custom-developed seals, and precision dust caps. The result: up to 500% better moisture protection while still maintaining ultra-low friction. The simplified spacer tube design and lighter cups ensure quick installation and 10% less weight compared to previous generations. All CeramicSpeed BB ALPHA models come with a lifetime warranty.

For the precise combination of a SRAM DUB crank (28.99 mm spindle) with a T47 threaded frame (85–86 mm wide, inboard bearings) – specifically designed for Gravel use.

Specifications

• Discipline: Gravel
• Crank brand: SRAM
• Crank diameter: 28.99
• Bottom bracket type: T47 86mm
• Net weight: 89 g

Included:

• BB ALPHA for T47/86 SRAM DUB Gravel
• DUB Spacer Kit
• UFO TECH Long Life Bearing Grease 5 ml
• Decal