9 function bike computer The buttonless technology and beefy hardware make the Proteg 9.0 bike computer your reliable and accurate data source. It's great for training, touring, and keeping track of your car-free miles. Its easy-to-read 4-line display gives you 5 pieces of data (including temperature!) at a glance. - Four-line, easy-to-read macromonitor LCD display provides up to five pieces of data at a glance - Heavy-duty, oversized wire harness and ultrasonically welded case ensure a durable, weatherproof unit - Mode changing is easy: push the computer forward in the spring-loaded bracket- the computer is the button - Auto start/stop and LCD shut off - Fits 25.0-31.8mm handlebars - Weight: 57 grams with bracket and sensor - Case size: 40mm x 47mm - Height (w/ bracket): 27 mm