Editorial Review:

Product Description:
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.

Amazon.com Product Description:
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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Availability: Usually ships in 24 hours

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Rating: - Works Great
Does everything as advertised. With the bicycle function, it makes me happy I bought the 305 vs. the 405. I can only kick myself for buying an actual bike computer three months earlier.

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Rating: - Speed/cadence sensor won't stay put!
The mounting process for the cadence sensor is fairly weak when you consider composite/carbon fiber chainstays and tapered tubes. The zip-ties aren't tight enough to keep the unit from sliding one way or the other and it eventually moves too far away from the magnets. Strong double-stick or industrial Velcro would be a better mount.

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Rating: - Sensitive
Cool tool to use if you can get it to synch properly. It is verrrry sensitive and if the adjustment is not perfect your cadence will not register. After several bike rides I find that I have had to readjust it each time. My ADD is starting to kick in and I am finding this to be a pain. It is entirely possible that due to operator error I may have not installed it properly at the beginning. Once hooked up properly it sychs seemlessly with the Garmin.

So if you have the patience( and good installation skills) go ahead and get it, the price makes it an easy purchase and this can be a beneficial tool in your training.

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Rating: - This is great
I purchased this product a few months ago. Installed it very easly. It took about 10 min for the installation. Works great. I wish I had this stuff when I was racing.

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Rating: - Garmin GSC 10 Speed Cadence sensor
I am using this on my second bike - and it and the entire Garmin Edge 305 system, works very well.
The Edge 305 has multiple bike profiles, so I've tuned the second profile to this sensor.
Care needs to be taken to install the sensor correctly so it aligns properly with both speed and cadence magnets.
The only observation is that the cadence magnet, the one that sticks on the left crank, is a little tricky to space relative to the sensor. In one bike it required a home-made spacer, such that it would bring it closer (within spec) to the sensor. This will depend on your bike and as I said I only had to build this for one of my bikes. Still, it would be nice if Garmin offered such a spacer.