4-line MacroMonitorTM LCD displays up to 5 pieces of data at a glance Digital wireless technology eliminates messy wires Fits 25.0-31.8mm handlebars Magnet fits up to 4mm bladed spokes Current speed, speed comparator,ride time, trip distance, dual odometer (for 2 wheel sizes), average Speed sensor Analog Wireless 9 BlackUPC/EAN/GTIN: 642016800306