Polar CS200 Cycling Computer Heart Rate Monitor Track your speed, distance, cycling intensity, heart rate zones, calories burned”and that”s just for starters. Download personal stats onto your PC for analysis. Cadence not included. User Ratings and Reviews 1 Star beware of non polar dealers with super low prices yes... 

SIGMA BC906 9 Function Topline Wired Bicycle Speedometer The BC 906 has everything a bike rider needs. Next to standard functions this all around computer is equipped with average speed. The computer is easily programmable with click buttons. If the battery is running low, a reminder alarms the bike rider before it is too late. User Ratings and Reviews 5...