CeramicSpeed BB ALPHA Bottom Bracket
Top Pick
CeramicSpeed

CeramicSpeed BB ALPHA Bottom Bracket

4.5

Best high performance upgrade for dedicated road cyclists.

This high-performance bottom bracket minimizes drivetrain friction through advanced ceramic bearing technology. Its robust sealing and lightweight construction offer a perfect balance of durability and speed, ensuring reliable power transfer in challenging conditions.

Shell Diameter Mm 46
Shell Width Mm 79
Spindle Diameter Mm

Who it's for

  • Competitive racers looking to maximize every watt of power output.
  • Endurance athletes requiring components that withstand heavy mileage.
  • Discerning cyclists who value a silent and vibration-free ride.

Who should skip it

  • Value-focused cyclists seeking a more affordable drivetrain upgrade.
  • Commuters who prefer a simple set-and-forget component setup.
  • Casual riders who prioritize cost over elite-level performance gains.

Performance breakdown

Drivetrain Efficiency

Ultra-low friction ceramic bearings minimize energy loss with every pedal stroke.

Excellent

Installation Simplicity

Simplified spacer system makes setup faster and less frustrating for mechanics.

Excellent

Weather Resistance

Advanced custom seals keep grit and moisture out of critical components.

Excellent

Weight Optimization

Lightweight aluminum cups shave grams without sacrificing structural integrity.

Excellent

Component Longevity

Hardened stainless-steel races ensure durability through thousands of hard miles.

Excellent

Bearing Precision

Grade-3 Silicon Nitride balls offer industry-leading smoothness and rotational accuracy.

Excellent

Key Specs

Material

Ceramic, Stainless Steel, 7075 Aluminum, POM Plastic

Weight

217.7 grams

Bottom Bracket Standard

BBright

Shell Width

79 mm

Shell Diameter

46 mm

Spindle Interface

SRAM DUB

Ceramic Bearings

Yes

Water Resistant

Yes

Know before you buy

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Ask Metto anything about the CeramicSpeed BB ALPHA Bottom Bracket before you decide.