Niterider Rebel 5.0 Wireless Computer w/Altimeter & Power meter. Niterider Rebel 5.0 Wireless Computer w/Altimeter & Power meter. An innovative mounting bracket allows for quick tool-free mounting to nearly any handlebar or stem. SPEED FUNCTIONS: Auto Start,Current speed, Average speed, Maximum Speed, Mph/Kph,Actual to average DISTANCE FUNCTIONS: Total distance, Trip distance, Elapsed ride time, 2 Wheel settings. ENVIRONMENTAL FUNCTIONS: 12/24 hr clock, Backlight, Auto sleep,Low battery indicator.Temp.Altimeter