Problem Solvers Bushnell Classic Fat
Best premium tensioning solution for single speed and tandem bicycle builds.
This eccentric bottom bracket is the gold standard for dialing in chain tension on singlespeeds and tandems without the clutter of external tensioners. Its full-aluminum construction locks firmly into place, offering a rock-solid, slip-free ride that makes drivetrain maintenance feel like an afterthought.
$150.00
at
Airpark Bike Co
Who it's for
- Single-speed riders seeking a dependable, slip-free chain adjustment solution.
- High-mileage cyclists who prioritize long-term component strength and reliability.
- Custom bike builders wanting flexibility in their drivetrain and crank choices.
Who should skip it
- Weight-conscious racers looking to minimize every gram on their build.
- Owners of standard threaded or PressFit frames requiring different tensioning hardware.
- Low-maintenance riders who prefer 'set it and forget it' components.
Performance breakdown
Tensioning Precision
Eccentric design allows for micro-adjustments to dial in perfect chain tension.
Structural Rigidity
Full-body aluminum construction ensures zero flex under heavy pedaling loads.
Installation Simplicity
Streamlines drivetrain maintenance by removing the need for external tensioners.
Slip Resistance
High-friction surface contact keeps the bottom bracket locked firmly in place.
Frame Compatibility
Specific sizing requirements limit use to compatible 54mm shell diameters.
Weight Efficiency
Solid aluminum build prioritizes durability over ultralight racing performance.
Key Specs
Weight
310 grams
Material
Aluminum
Shell Width
100 mm
Shell Diameter
54 mm
Thread Specification
1.37 x 24 tpi
Bottom Bracket Standard
BSA Threaded
Know before you buy
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