Ceramic Speed

BB ALPHA Mountain Bottom Bracket - BB92, 89.5/92mm, For 24mm/Shimano Spindle

CeramicSpeed BB ALPHA Mountain Bottom Bracket sets a new benchmark for durability, efficiency, and precision in the world of mountain biking. Designed for riders who demand the best performance from every pedal stroke, this bottom bracket combines advanced ceramic bearing technology with improved sealing and a lighter, more refined design.

Built around hardened stainless-steel races and grade-3 Silicon Nitride ceramic balls, the BB ALPHA delivers ultra-low friction and exceptional corrosion resistance, even in wet and gritty trail conditions. The custom-engineered light contact seals and precision dust covers provide up to 500% better moisture protection, keeping contaminants out and performance consistent season after season.

The simplified spacer tube and 7075 aluminum cups reduce weight by 10% compared to previous generations, while the redesigned internal bearing race enhances support under load, improving pre-load handling and long-term reliability. Each unit is hand-built in Denmark to exacting standards and made to outlast your frame.

• Optimized for BB92 frames with 24mm Shimano spindles
• Grade-3 Silicon Nitride ceramic bearings for ultra-smooth rotation
• Hardened stainless-steel races for maximum corrosion protection
• Improved seals and dust covers block out debris and moisture
• 10% lighter 7075 aluminum cups with simplified installation
• Hand-built quality backed by a lifetime warranty

For riders chasing every bit of efficiency and longevity, the CeramicSpeed BB ALPHA Mountain Bottom Bracket delivers a ride that stays smoother, faster, and more reliable, no matter the conditions.