Description
DUO Brand C2 Crankset
Product Overview
The DUO C2 crankset is a pro-level performance drivetrain component engineered for competitive BMX racing. The hollow forged aluminum construction with 24mm chromoly spindle and integrated sealed bearing bottom bracket deliver superior stiffness-to-weight ratio and responsive power transfer across high-stress racing applications.
Key Features
- 3D hollow forged 6066 aluminum construction – Advanced hollow forging process maximizes stiffness while minimizing weight; aerospace-grade aluminum alloy withstands pro-level racing stress without flex or energy loss
- 24mm chromoly hollow spindle – Premium hollow spindle design reduces weight while maintaining rigidity; chromoly material provides durability and impact resistance under extreme pedaling forces
- 4-bolt x 104 alloy spider – Precision engineering ensures solid chainring mounting without vibration or runout; four-bolt design provides balanced load distribution across sprocket attachment points
- 7075 CNC machined 44T chainring – Aerospace-grade aluminum with 5mm thickness delivers precision machining and durability; larger 44-tooth sizing optimizes racing gear ratio for speed and acceleration
- 3/32-inch chainring – Standard BMX chain compatibility ensures reliable drivetrain engagement without special chain requirements
- Precision sealed bearing outboard Euro bottom bracket – Integrated sealed bearing system eliminates frequent maintenance; Euro-type sizing ensures compatibility with standard frame geometry; outboard bearing design optimizes spindle support and reduces flex
- 180mm crank length – Extended sizing provides maximum mechanical advantage for racing acceleration and top-end speed
Technical Specifications
- Type: Complete crankset with integrated bottom bracket
- Crank material: 3D hollow forged 6066 aluminum
- Spindle: 24mm chromoly hollow
- Length: 180mm
- Spider: 4-bolt x 104 alloy
- Chainring: 7075 CNC machined aluminum, 44-tooth, 3/32", 5mm thickness
- Bottom bracket: Precision sealed bearing outboard Euro type (included)
- Application: Pro-level BMX racing
Compatibility and Ideal Use Cases
Compatible with standard Euro-type bottom bracket shells and 180mm-compatible frame geometries; verify frame BB shell type before purchase. Ideal for competitive racers and pro-level riders seeking premium drivetrain performance and lightweight construction. Suitable for high-stress racing applications, speed runs, and competitive BMX racing where maximum efficiency and responsiveness matter. The integrated sealed bearing bottom bracket eliminates separate BB purchases and maintenance. Works with standard 3/32" BMX chains and compatible pedals. Recommended for advanced competitive riders prioritizing pro-level crank performance, aerospace-grade material quality, and optimized racing geometry with integrated sealed bearing bottom bracket system.
