The cranks are monocoque carbon composite and they're also hollow to keep the weight down, with a unidirectional carbon finish.
The 53/39 tooth chainrings are strong 7075 aluminum, CNC machined. They're held in place with Torx T-30 alloy bolts so swapping new chainrings in place when they eventually wear out is a simple job.
- Crank Arm Length: 175mm
- Chainrings: 53/39t
- Spindle: 24mm MegaExo