FSA’s Road PowerBox Carbon Crankset employs a P2M convertible spider design for multiple chainring options. FSA's hollow carbon arms and BB386EVO spindle mated together produce a very lightweight, extremely versatile power meter crankset available with a double chaining configuration. Software upgrades are available for even more features.

- Hollow carbon arms with UD carbon finish
- BB386EVO 30mm AL 7050 alloy spindle fits every frame (purchase BB separately)
- AL7075 CNC chainrings
- AL7075 Torx T-30 alloy chainring bolts
- Fits Shimano and SRAM 10-11 speed systems
- Spider-based power sensors provide total power output measurement of both legs, with Left & Right leg output analysis available with system upgrade
- Bluetooth connectivity available with system upgrade
- Battery life is approximately 300-400 hours
- Easy-to-replace CR2450 battery