CatEye Micro Wireless Cyclocomputer CatEye's most popular wireless computer boasts ten functions and 12 features, including LED backlight and programmable odometer Simple, easy-to-use bracket mounts on both stem and handlebar; universal sensor mount attaches easily to both road and mountain bike forks Current, average, and maximum speed to 65.9 MPH; total distance to 99,999 miles, two trip distances to 999 miles, and two elapsed times to 9:59:59 12- and 24-hour clock; pace arrow and auto power saving mode; tire sizes from 100 to 3,999 millimeters; 70-centimeter transmission distance Computer and sensor run on CR2032 batteries; measures 38 by 52 by 22 millimeters (W x H x D); 30-gram weight