Stages Gen 2 FSA Energy 386EVO Left Crank Arm Power Meter Size:172.5 secure fit

secure fit

but still having a tapered fit that will reduce wind drag and help it look good off the bike as well

Zipp 303 Firecrest Disc Carbon Tubeless 650b Wheelset

Shimano Dura-Ace ST-9001 Brake/Shift Lever Set 11 Speed

Reflective detailing helps keep you noticeable

Stages Gen 2 FSA Energy 386EVO Left Crank Arm Power Meter Size:172.5 secure fit"Get the power meter pros use on the drivetrain you use. Stages power meters are built for real riding. What good is advanced tech if its not waterproof and easy to use? This power meter won the last three Tours de France. Make data a training tool, not a buzzword. This Stages Gen 2 power meter is built into a single, non drive side FSA Energy 386EVO crank arm. "