Check the listing for details. Garmin Edge 540 Solar Bicycle GPS Head Unit W/ Mapping - Touchscreen. Color: Black, Condition: New. Listed at 449.00 USD. Introduce the rider you are today to the one you'll be tomorrow. The Edge® 540 Solar cycling computer offers targeted adaptive coaching when used with your compatible power meter and heart rate monitor It helps you manage your efforts by providing power targets throughout a course plus stamina insights, so you know how much gas is left in the tank Ride longer with solar charging, and get superior positional accuracy under dense tree cover or the urban canyon, thanks to multi-band GNSS technology It features button controls that work in any conditions Whether you're riding roads, trails, gravel or indoor, you can benefit from insights and workouts that will help you understand your strengths and weaknesses and prepare for upcoming races or personal milestones