Edge Power Mount - Black, Mount Only left crank arm Compatible with Shimano GRX cranksets

Compatible with Shimano GRX cranksets including RX600 and RX810

Its Magnetic Chinbar Release (MCR) allows quick conversion between full and open-face modes

Perforated single-layer Clarino™ palm for superior airflow and comfort

The inside of the waistband is faced with mesh for comfort and the effective transport of moisture away from the skin

More specifically

Edge Power Mount - Black, Mount Only left crank arm Compatible with Shimano GRX cranksetsThe Edge Power Mount lets you constantly power your compatible Edge GPS cycling computer, so you can capture every eBike ride from start to finish. Forgot to charge your Edge computer? Attach your mount and never lose power again. You dont have to compromise display brightness or performance quality to save battery life its a win win. The flush, out front design plugs into your eBike and attaches to your handlebars. Find your match. This mount works