Box Three Crankset
Best durable upgrade for budget conscious BMX racers.
A stiff, reliable upgrade for riders looking to improve power transfer without excessive weight. The two-piece design and oversized spindle ensure durability, while the pinch-bolt system makes for a secure, easy-to-maintain setup on the trail or track.
$309.99
at
Jax Bicycle Center
More Three options
Who it's for
- Novice racers seeking dependable equipment on a modest budget
- Developing riders who need components that survive heavy daily use
- Practical racers who value simple maintenance and component compatibility
Who should skip it
- Weight-conscious competitors aiming for the fastest possible gate starts
- High-output athletes who prioritize maximum power transfer through the pedals
- Powerful or heavier riders requiring total rigidity during sprints
Performance breakdown
Power Transfer Efficiency
Hollow-forged construction ensures minimal flex during high-torque pedal strokes.
Weight Optimization
Hollow-forged design sheds significant mass without sacrificing structural integrity.
Installation Simplicity
Straightforward two-piece design, though pedal washers require extra attention.
Component Versatility
Standard 104 BCD spider accommodates a wide range of chainring options.
Clamping Security
Dual-bolt pinch system provides reliable, even pressure on the spindle.
Durability
Robust materials and sealed bearings handle aggressive riding conditions with ease.
Key Specs
Construction
Hollow-forged 2-piece design
Spindle Diameter
24 mm
Bolt Circle Diameter
104 mm
Chainring Bolt Count
4
Bottom Bracket Included
Yes
Bottom Bracket Interface
BSA
Crank Arm Lengths
170 mm, 180 mm
Know before you buy
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Ask Metto anything about the Box Three Crankset before you decide.