Pellor New Sunding SD-548C Multifunction Wireless Bicycle stopwatch Odometer Speedometer Bike cyclometers waterproof cycle computer Cable Length: 1000mm / 39.4in Speed Range: 0~99.9km/h With the bike computer, you'll be up and rolling in no time Functions include current speed, maximum speed, trip distance, total distance and so on Innovative sensor combines speed and cadence into a single unit that mounts quickly