Problem Solvers Bushnell Lightweight Eccentric Bottom Bracket
Best reliable component for single speed or internally geared bicycle builds.
This is the gold standard for managing chain tension on tandems and single-speed rigs. The machined alloy construction sheds unnecessary weight while providing a rock-solid, adjustable platform for your drivetrain.
$132.99
More Bushnell Eccentric Bottom Bracket options
Who it's for
- Cyclists with single-speed or internally geared bikes
- Performance-focused riders seeking weight savings
- Riders desiring a quiet, dependable drivetrain
Who should skip it
- Bike owners with standard bottom bracket shells
- Novice mechanics or those without specialized tools
- Budget-conscious builders or those seeking basic functionality
Performance breakdown
Tensioning Precision
Micro-adjustments for chain slack are intuitive and exceptionally precise.
Weight Optimization
Strategic alloy cut-outs shave grams without compromising structural rigidity.
Installation Ease
Requires specific mechanical knowledge but fits standard shells seamlessly.
Compatibility Range
Standard English threading ensures broad integration across most frame configurations.
Drivetrain Stability
Locks firmly in place to prevent unwanted shifting under heavy torque.
Build Durability
Robust alloy construction withstands the rigors of dedicated single-speed riding.
Key Specs
Material
Alloy
Shell Width
68mm
Shell Diameter
54mm
Thread Specification
English
Intended Use
Tandem and single speed bikes
Bottom Bracket Standard
Eccentric
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