Best deal:

Delivers everything as promised. No issues during installation. Easily syncs with heart monitor, and easy setup.
This is my 3rd sensor for my Garmin Edge 305. I hope this one works longer than the first two.
Easy to install on the bike and easy to adjust. I was a little worried I might hit it with my heel since it mounts to the rear wheel, but haven't had any issues and I've been using it for a couple of weeks. GREAT ADVANTAGE - can use it on outdoor rides or indoors on a trainer since it mounts to rear wheel. No repositioning required.I had minor problems syncing it to my Forerunner 50 - but mostly when I'm transitioning from a run. Overall, great tool for the low price.
I bought the sensor for my second bike and it pair quiet easily to my Edge 705.
I am a newbie to electronic fitness products. I am old school when it came to working out. I got the Garmin Forerunner 305 GPS Receiver With Heart Rate Monitor to keep track of my after work jogs and since I had a bike I decided to get the cadence sensor as well. They work very well together (Pair easy). It mounts to your bike with cable ties so it's very easy to install, it transmits to the 305 wirelessly. The only problem was that the magnet that goes on the peddle crank did not come close enough to the sensor to register. So I had to place a spacer between the magnet and crank to get it closer. Other than that it works great for me. The price was high also.[[ASIN:B000CSWCQA ]]
The Garmin 010-10644-00 Speed/Cadence sensor (GSC 10) can 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. Use with the Edge 305 or Edge 305CAD, Included With The Edge 305CAD GPS Plus
A good companion for Garmin's Edge 305 and 305CAD cycle computers and the Garmin Forerunner 305 personal trainer, the GSC 10 monitors your cycling rhythm for up-to-the-minute results and later analysis. The self-calibrating, wireless unit measures both speed (in pedaling strokes per minute) and cadence , then provides feedback to the user for optimal performance. You can later feed the results to Garmin's Training Center software, which helps you tailor your workouts to meet specific goals and objectives. Like the Garmin heart rate monitor, the GSC 10 attaches easily to your bike, where its sensors detect signals from your wheels and send the information wirelessly to your personal trainer/cycle computer. It's also backed by a one-year warranty.


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Garmin forerunner Bike Mount:
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