WAHOO ELEMNT BOLT 2 GPS BIKE COMPUTERELEMNT BOLT is purposefully built to provide a simple, intuitive ride experience in a sleek, aerodynamic design. This GPS bike computer features a 2. 2 inch, 64 color screen with an ambient light sensor to make it easy to see the metrics that matter most, at a glance. Perfect View Zoom, Quicklook LEDs, and customizable data pages allow you to personalize your device setup to ensure its a helpful companion from the beginning to the end of your ride.