Product Description

Garmin Geschw.& Trittfrequenz-Sensor GSC 10, Edge 305

Product Details

• Amazon Sales Rank: #896 in Consumer Electronics
• Brand: Garmin
• Model: 010-10644-00
• Released on: 2007-03-15
• Dimensions: 2.74" h x 2.15" w x 3.00" l, .2 pounds

Features

• Thanks to the GSC 10 wireless sensor and your Garmin GPS, you can measure your push-pull rhythm when you&rsquore on the move. Easy to install, this device accurately determines and measures your pace or speed, meaning that you can get an overview of your effort and improve your performances.
• GARMIN GSC 10 Speed/Pace Sensor for GPS Garmnin Forerunner 305, for Garmin Edge 305 GPS & Sat Nav accessory Other GPS accessories
• Other GPS accessories

Box Contents

Customer Reviews

Just the Job
I bought this item to enhance my taining and to link to my Garmin Edge. Having read other reviews I am pleased to report that the unit does exactly what it is supposed to. Linking to the Edge was simple; when setting up the LEDs were clearly visible indoors (although I did ask my partner to tell me which was red and wich was green and I am colour blind!!).

Using the system outdoors is fine and I can log cadence which is a great benefit.

Indoors is a whole different experience now. I use a mag trainer (Cycle Ops) and with the cadence sensor plus the Edge I can monitor and record cadence and speed (due to the wheel sensor being on the rear wheel). The Edge senses the constant GPS location and offers the option of turning off the GPS (a clever feature). Add to this the heart rate and what more do you need for training purposes.

All in all, a great complement to the Egde and a super training aid.

Stay away
The Garmin Cadence Sensor is very unreliable. I have had 2 of them in less than 3 months (and a good friend of mine has also had 1 that malfunctioned after 6 weeks). The device either malfunctions and doesn't synch intermittently or just doesn't synch at all after a short amount of time. I wonder if rain untimately has a negative impact on this device?

At any rate, far more alarming is that the device also has a fatal design flaw. You just can never get the device secure enough around your chain sta (it attaches to your chain stay with zip ties). If you go over a nasty bump or if your foot so much as lightly touches the device there is a high probability that it will push the sensor into your wheel spokes.

I just bought a new Campag Euros wheelset (£650) and I would never use the cadence sensor anywhere near it. It is amazing to me that more people haven't recognized this as a problem. This flaw essentially makes the Cadence Sensor useless...if you can even keep the thing working.

Works with Forerunner
I bought this to go with my Forerunner 305.

Product is a little fiddly to install - one of the magnets has to be zip-tied or stuck to the back of one crank, and the other has to go onto a rear wheel spoke. Instructions are not clear on whether the spoke magnet is required, but it could be a problem for those with solid/few spoke wheels. Spoke magnet also does not fit well - it's designed to fit best where two spokes cross, but on my (fairly standard) MTB rear wheel, this would mean the main unit not being next to the crank.

For testing whether magnets are aligned, note that the led 'flash' is hard to see in bright daylight.

Once in fitted, transmissions were picked up within a minute by the Forerunner, and after approx 5 minutes of riding had automatically calculated the rear wheel dimension.
Once setup, gives cadence readings as expected.

In summary, does exactly what it says it'll do, and once installed, is simplicity to use.