Ceramic Speed

BB ALPHA Mountain Bottom Bracket - PF30, 73mm, For 24mm/Shimano Spindle

CeramicSpeed BB ALPHA Mountain Bottom Bracket sets a new benchmark for durability and performance in mountain bike drivetrains. Designed for PF30 frames with a 73mm shell and 24mm Shimano spindle, this bottom bracket combines precision engineering and premium materials for riders who demand the best in efficiency and longevity.

Built around hardened stainless-steel races and hand-assembled grade-3 Silicon Nitride ceramic bearings, the BB ALPHA runs smoother and lasts longer than traditional bottom brackets. The redesigned bearing placement and custom-engineered seals provide up to 500% better moisture protection, keeping performance consistent in wet, muddy, or dusty conditions. The lightweight 7075 aluminum cups and simplified spacer tube design make installation faster and reduce overall weight by 10% compared to previous models.

Every BB ALPHA is handbuilt in Denmark and backed by a lifetime warranty, giving riders confidence that their investment will go the distance on every ride.

• Exceptional durability: Hardened stainless-steel races resist corrosion and extend service life.
• Low-friction performance: Silicon Nitride ceramic balls deliver smoother pedaling and improved power transfer.
• Enhanced protection: Custom light-contact seals and precision dust covers keep out water and debris.
• Lightweight design: 7075 aluminum cups reduce weight while maintaining strength.
• Easy installation: Simplified spacer setup ensures a precise fit and quick assembly.
• Lifetime warranty: Confidence backed by CeramicSpeed’s commitment to quality.