Wheels Manufacturing BSA 30 Bottom Bracket
Best durable upgrade for riders with 30mm threaded drivetrain spindles.
A robust, serviceable upgrade for threaded frames that prioritizes longevity and smooth rotation. The angular contact bearings are specifically engineered to manage both radial and axial forces, making them a reliable choice for demanding road riding conditions.
$142.00
at
Seattle Electric Bike
More BSA Bottom Bracket options
Who it's for
- Cyclists wanting to pair stiff 30mm cranks with threaded frames
- Riders tired of persistent creaking from press-fit bottom brackets
- Mechanics who prefer long-lasting, serviceable, and high-quality components
Who should skip it
- Home mechanics lacking specialized external cup installation tools
- Weight-conscious racers prioritizing the lightest possible drivetrain setup
- Heavy riders or those demanding maximum bearing longevity
Performance breakdown
Bearing smoothness
Angular contact bearings provide exceptionally low friction for efficient power transfer.
Installation ease
Standard threaded interface makes setup straightforward for most home mechanics.
Durability
Robust construction handles the high torque demands of modern mountain biking.
Compatibility range
Specific design limits use to 30mm spindles 104mm wide and larger.
Sealing efficiency
Effective seals keep grit and moisture out of the bearing races.
Serviceability
Standardized design allows for easy bearing replacement without replacing the cups.
Key Specs
Frame Interface
BSA/English Threaded
Spindle Interface
30mm
Shell Width
73mm
Spindle Diameter
30.0mm
Material
Aluminum
Bearing Material
Steel
Bearing Type
Angular Contact
Weight
102.0g
Sealing Type
Sealed
Intended Use
Cycling, Bottom Bracket
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