Box Four Crankset
Best durable crankset for aggressive riders needing reliable power transfer.
A robust and stiff drivetrain component designed for reliable power transfer. The integrated spindle and dual-pinch bolt system simplify installation while ensuring a secure, flex-resistant connection for demanding riders.
$169.99
at
Roy's Cyclery
Who it's for
- Aggressive riders needing efficient power transfer for climbs and sprints
- Budget-conscious intermediate cyclists seeking high-performance upgrades
- Home mechanics preferring straightforward, tool-friendly component installation
Who should skip it
- Weight-obsessed racers prioritizing the lightest possible bike setup
- Cyclists with older frames requiring non-standard bottom bracket compatibility
- Custom-build enthusiasts wanting specific aesthetic or sizing options
Performance breakdown
Power Transfer Efficiency
Oversized interface and 24mm spindle minimize flex during explosive sprints.
Structural Rigidity
Flex-resistant spider design holds firm under heavy, aggressive riding loads.
Installation Simplicity
Two-piece architecture and included bottom bracket make setup straightforward.
Durability
Steel pedal inserts and robust construction handle high-impact BMX abuse.
Clamping Security
Dual-bolt pinch system locks the non-drive side down with confidence.
Weight Efficiency
Steel construction prioritizes strength over lightweight racing performance.
Key Specs
Crank Arm Length
160.0 mm
Intended Use
BMX
Bottom Bracket Interface
BSA, 24mm
Material
Steel
Bolt Circle Diameter
104.0 mm
Chainring Mount Type
4-Bolt
Spindle Diameter
24.0 mm
Crank Construction Type
2-Piece
Weight Limit
115 kg
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