Description
The Sram Apex Dub Left Crank Arm And Power Meter Is A Dub-Pwr Spindle-Based Left-Side Power Meter That Provides Accurate Wattage To Help Our Road Cycling Performance. This 12-Speed Crank Delivers +/- 1. 5% Proven Quarq Accuracy, A Superior Battery Life Of Over 400 Hours, And An Ipx7 Waterproof Rating For Those Stormy Rides.