Sigma 506 Basic bike computer. 5 functions. Current speed, clock, trip distance, total distance & trip riding time. Sigma 906 The standard bike computer. 9 functions. Current speed, average speed, current speed vs average speed, maximum speed, clock, trip distance, total distance, trip riding time & total riding time. Cateye Strada Cadence For serious riders. The one to use with a indoor trainer. 9 functions. Current speed, average speed, maximum speed, cadence, clock, trip distance 1 & 2, total distance & trip riding time. Polar CS100b No wires. Easy clean setup. Oversize display with backlight. 7 functions. Current speed, average speed, maximum speed, clock, trip distance, total distance & trip riding time. Cateye Strada Wireless No wires. Easy clean setup. 8 functions. Current speed, average speed, maximum speed, clock, trip distance 1 & 2, total distance & trip riding time. Sigma BC 1606L Double Wireless Cadence and speed in one unit and no messy wires. 16 functions. Current speed, average speed, Commparison speed vs ave. speed, maximum speed, trip distance, total distance 1 & 2, trip riding time, total riding time 1 & 2, clock, lap timer, current cadence, average cadence, backlight. BACK TO TOP