WHEELS Mfg Eccentric Bottom Bracket
Best reliable solution for single speed conversions on compatible frames.
This component enables a seamless conversion of specific frames to a single-speed setup. It combines durable machined aluminum construction with high-quality angular contact bearings to ensure reliable performance and easy chain tensioning.
$205.00
at
Wheels Manufacturing
Who it's for
- Cyclists building single-speed bikes or those with internal gear hubs.
- Riders wanting to use 24mm cranks in a BB30 frame.
- Experienced riders seeking minor adjustments to their bike's feel.
Who should skip it
- Riders sensitive to bike noises or those who prefer low maintenance.
- Home mechanics or those new to advanced bike component installation.
- Weight-conscious riders prioritizing the lightest possible build.
Performance breakdown
Bearing Smoothness
Enduro angular contact bearings deliver exceptionally low friction and consistent rotation.
Build Durability
Machined aluminum construction far outlasts standard plastic or composite alternatives.
Chain Tensioning
Provides precise, reliable adjustment for single-speed setups without needing a derailleur.
Weather Resistance
Double-lip seals effectively block contaminants from reaching the internal components.
Serviceability
Fully serviceable design allows for easy maintenance and extended component life.
Installation Complexity
Requires specific mechanical knowledge to dial in the eccentric adjustment correctly.
Key Specs
Bearings
Enduro Angular Contact
Color
Black
Bottom Bracket/Frame Interface
BB30, Specialized Alloy OSBB
Bottom Bracket Shell Width
68mm - 73mm
Bottom Bracket Shell I.D.
42mm
Chain Adjustment
12mm
Crank Spindle Type
Shimano Hollowtech II, FSA MegaExo, RaceFace EXI
Crank Spindle Diameter
24mm
Weight
172g
Material
Machined Aluminum
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