Kool(TM) LCD Bicycle Bike Speedometer Odometer Waterproof Mountain Cycling Computer Speedo Easy to install. Waterproof. Small size, light weight, stylish design. Large LCD Computer display, easy to read. Fits all bike sizes. Great for suspension forks. Batteries, instructions and fitting accessories are included. Monitor your bicycle's speed, distance, riding time, etc. Clock: 12/24H format is selectable.Metric and Imperial speeds mph/kph are selectable.Speedometer with digit display & image display.