Garmin GSC 10 Speed Cadence Bike Sensor Monitor your pedaling cadence as you ride with this self-calibrating, wireless speed/cadence sensor. It measures and reports your pedaling strokes per minute, providing feedback for optimal performance. Part Number: 010-10644-00 User Ratings and Reviews 5 Stars Works as it should I bought... 

Garmin Edge 605 and 705 Garmin Edge 605 & 705 By Garmin User Ratings and Reviews 5 Stars Overall it is great! I think this is a great product! It has a wide range of trackable elements and really is a great tool. But, the base maps that it comes with are really poor quality. You will need to buy the Map pack. Make sure...