Problem Solvers Bushnell Eccentric Bottom Bracket
Best reliable tensioning solution for single speed and internal gear riders
This component is the gold standard for dialing in chain tension on tandem and single-speed setups. Its robust, full-body aluminum design ensures a secure fit and reliable performance, making it the go-to solution for eccentric bottom bracket shells.
$150.00
More Bushnell Eccentric Bottom Bracket options
Who it's for
- Single-speed riders seeking a hassle-free way to maintain chain tension
- Cyclists repurposing vintage or standard frames for custom drivetrain builds
- Commuters and high-mileage riders who prioritize a silent, stable ride
Who should skip it
- Weight-conscious racers looking to keep their bike builds light
- Budget-focused builders who may find the cost prohibitive for conversions
- Home mechanics without access to high-quality torque wrenches or experience
Performance breakdown
Tension Stability
Full-body friction design locks chain tension securely under heavy pedaling loads.
Installation Simplicity
Standard English threading makes setup straightforward for most home mechanics.
Build Durability
Rugged aluminum construction withstands the rigors of tandem and single-speed riding.
Adjustment Precision
Offers granular control for dialing in perfect chain slack every time.
Weight Efficiency
Solid construction adds necessary weight for stability over ultralight performance.
Maintenance Ease
Non-serviceable bearings require full unit replacement rather than simple part swaps.
Key Specs
Weight
136.08 grams
Material
Aluminum
Shell Width
68 mm
Shell Diameter
54 mm
Thread Specification
1.37 x 24 tpi
Intended Use
Tandem and single speed bikes
Spindle Diameter
0 mm
Adjustable Chainline
No
Water Resistant
No
Ceramic Bearings
No
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