The CeramicSpeed BB ALPHA BB86 Shimano Road Bottom Bracket is a premium press-fit BB86 (41 mm × 86 mm) bottom bracket designed for Shimano 24 mm axle road cranksets. It focuses on ultra-low friction, high durability, and maximum bearing protection.
The BB ALPHA range is CeramicSpeed’s refined generation, offering improved moisture resistance, lighter construction, and simplified installation, while maintaining extremely low rolling resistance.
Key Features
BB86 press-fit standard (41 mm × 86 mm)
Compatible with Shimano 24 mm axle cranksets
Ultra-low friction performance
Lifetime warranty
Up to 500% improved moisture protection
Lightweight and serviceable design
Simplified installation (Shimano-compatible, no spacers required)
Technology Highlights
Hardened stainless-steel bearing races for corrosion resistance
Grade-3 Silicon Nitride ceramic balls
Custom light-contact seals for optimal efficiency and protection
Stainless-steel reinforced seal backing
High-stiffness POM dust covers
7075 aluminum cups for strength and reduced weight
Optimized bearing placement for improved contamination resistance
Approximately 10% lighter than previous generations
This bottom bracket is designed for riders who want maximum efficiency from Shimano 24 mm road cranksets in BB86 frames. The ceramic bearings and advanced sealing system provide extremely low friction and long-lasting durability, making it ideal for high-performance road cycling.
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