Planet Bike Proteg&eacute; 9.0 wireless bike computer 9 function wireless bicycle computer: speed, ride time, trip distance, 2 wheel sizes, avg speed, max speed, clock, and temperature Includes universal handlebar/stem compatible bracket 4-Line Macro monitor LCD displays up to 5 pieces of data at a glance Digital wireless technology eliminates messy wires Case size: 40mm x 55mm 9-function bike computer for tracking speed, distance, and more Measures current speed, ride time, average speed, and trip distance Includes dual odometer (for 2 wheel sizes), clock, and thermometer 4-line LCD display shows up to 5 pieces of data at a time Fits 25 to 31.8 mm handlebars; limited lifetime warranty