BOX Cosine Chainring
Best durable drivetrain component for demanding riders.
Crafted from CNC-machined 6061-T6 aluminum, this chainring offers durability and precision. Its rounded tooth profile is engineered to reduce chain wear, prolonging the life of your drivetrain. A practical choice for maintaining bike performance and minimizing replacement costs.
$49.99
at
Bike Stop Astoria
More Cosine options
Who it's for
- Riders tackling challenging trails or aggressive BMX tracks
- Aggressive riders seeking long-lasting, reliable drivetrain components
- Performance-focused cyclists prioritizing pedaling efficiency and responsiveness
Who should skip it
- Budget-conscious riders or casual cyclists seeking affordable parts
- Cyclists with diverse setups or those needing universal component options
- Riders who prefer a wide variety of chain brands or models
Performance breakdown
Material Durability
6061-T6 aluminum provides a robust balance of strength and weight.
Drivetrain Longevity
Rounded tooth profile significantly minimizes friction and premature chain wear.
Manufacturing Precision
CNC machining ensures tight tolerances for consistent, reliable power transfer.
Installation Simplicity
Standard four-bolt mounting makes swapping this ring a straightforward task.
Aesthetic Finish
Clean, understated black anodizing complements almost any bike build.
Compatibility Range
The 144mm BCD limits options to specific track or older cranks.
Key Specs
Material
6061-T6 Aluminum
Manufacturing Process
CNC-machined
Tooth Profile
Rounded
BCD
144mm
Color
Black
Teeth
42
Mounting
4 Bolt
Drivetrain
1x
Know before you buy
Still have a question?
Ask Metto anything about the BOX Cosine Chainring before you decide.
