9-function wireless bike computer The Proteg 9.0 wireless bike computer is great for training, touring and keeping track of your car-free miles. It has become a favorite among all types of cyclists for its simple design and rugged construction. Buttonless technology and a 4-line display give you 5 pieces of data (including temperature!) at a glance. - Functions: Current Speed - Speed Comparator - Ride Time - Trip Distance - Dual Odometer (for 2 wheel sizes) - Average Speed - Maximum Speed - Clock - Temperature - Digital technology results in decreased interference - Easy-to-adjust sensor that fits bladed spokes up to 4 mm - 4-Line MacroMonitor LCD displays up to 5 pieces of data at a glance - Fits 25.0-31.8mm handlebars - 21" wireless range