CeramicSpeed BB ALPHA T47
Best premium upgrade for cyclists seeking maximum drivetrain efficiency and longevity.
This high-performance bottom bracket minimizes friction to squeeze every watt of efficiency out of the drivetrain. With advanced sealing and durable ceramic internals, it offers a significant upgrade in both longevity and smoothness for demanding road cyclists.
More BB ALPHA options
Who it's for
- Competitive cyclists seeking maximum efficiency and marginal gains
- High-mileage riders wanting a reliable, long-lasting drivetrain component
- Performance athletes who prioritize a quiet and stable ride
Who should skip it
- Budget-conscious cyclists looking for basic functional replacements
- Casual commuters who prefer a set-and-forget maintenance approach
- Home mechanics without access to professional-grade cycling tools
Performance breakdown
Drivetrain Efficiency
Ceramic bearings drastically reduce drag for a noticeably smoother pedal stroke.
Weather Resistance
Custom seals effectively block grit and moisture from compromising internal components.
Weight Optimization
Lightweight aluminum construction sheds grams without sacrificing structural integrity.
Installation Simplicity
Simplified spacer design makes setup straightforward for most home mechanics.
Component Durability
Hardened stainless races ensure longevity even under high-wattage riding conditions.
Bearing Precision
Grade-3 Silicon Nitride balls offer industry-leading tolerances for consistent rotation.
Key Specs
Weight
89 grams
Material
Ceramic, Stainless Steel, 7075 Aluminum, POM Plastic
Bearing Material
Ceramic, Stainless Steel
Bottom Bracket Standard
T47
Shell Diameter
46 mm
Shell Width
86 mm
Spindle Interface Type
SRAM DUB
Sealing Type
Custom light contact seals
Water Resistant
Yes
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