Ceramic Speed

BB ALPHA Mountain Bottom Bracket - English/BSA, 73mm, For DUB Spindle

CeramicSpeed BB ALPHA Mountain Bottom Bracket is built for riders who expect long-lasting performance and efficiency from every turn of the crank. Designed for DUB spindles and a 73mm English/BSA shell, this bottom bracket brings together advanced materials and precision engineering to deliver smoother pedaling, better durability, and reduced maintenance over time.

Hand-built in Denmark, the BB ALPHA uses hardened stainless steel races paired with grade-3 Silicon Nitride ceramic balls for an ultra-low friction interface that resists corrosion even in the harshest conditions. Custom-engineered seals and precision dust covers provide up to 500% better moisture protection, keeping contaminants out and performance consistent on every ride.

The simplified spacer tube design and lighter 7075 aluminum cups make installation straightforward while trimming weight by 10% compared to earlier versions. With bearings positioned further out in the cups and redesigned internal races, the BB ALPHA offers improved stiffness and load handling for a more responsive ride on technical terrain.

• Ultra-low friction ceramic bearings with hardened stainless steel races for smoother pedaling and lasting performance
• Enhanced protection with new seals and dust covers offering up to 500% better moisture resistance
• Improved stiffness from relocated bearings and reinforced internal support
• Lightweight 7075 aluminum cups reduce weight and simplify installation
• Hand-built in Denmark and backed by a lifetime warranty

For mountain riders chasing efficiency, durability, and reliability, the CeramicSpeed BB ALPHA Mountain Bottom Bracket sets a new standard in bottom bracket performance.