The Velo Wireless+ now packs even more punch with a programmable odometer, menu screen and backlight with night modeFunctions include current, average and maximum speed, trip and total distance, elapsed time, clock and calorie consumption Analog wireless speed function with pace arrow, auto start and stop with simple tire size setupInstalls easily on almost any bike, including 27.5 and 29 inch Speed SensorAnalog Wireless8BlackUPC/EAN/GTIN: 725012038147