Reviews for Garmin GSC 10 Speed/Cadence Bike Sensor

Garmin GSC 10 Speed/Cadence Bike Sensor by Garmin

Garmin GSC 10 Speed/Cadence Bike Sensor List Price: $59.99
Our Price: $33.99
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Category: CE
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Digital camera reviews of Garmin GSC 10 Speed/Cadence Bike Sensor

Digital camera Review: Design could be improved
Summary: 3 Stars

The design could be improved upon as you need to have a magnet on both the crank arm and the spoke within 5mm of the sensor. This makes id difficult and may require some minor modifications on some bicycles (I needed to add a spacer between the crank arm and the magnet). Too much tilt towards the crank, risks having the arm of the sensor being caught in the spokes after a large bump on the trails or raod. I have known of other people being able to purchase a larger magnet to the inside of the pedal screw which allows the sensor to be farther appart. Other than that, it works great with the Edge.

Digital camera Review: Design flaw
Summary: 3 Stars

When placing the sensor, it turns out that there is too much tilt towards the crank. After one bump on the road, or hitting it with my road shoe, the arm of the sensor moved and the spokes hit it and broke it off. I am now on my second sensor.

Digital camera Review: Does the job, but not very durable.
Summary: 4 Stars

I got one of these with my Garmin Edge 305 Cycling GPS system and mounted it on my road bike. It works very well and seems quite accurate. This second one is for a stationary bike I have.

My only problem is that the first one I got has cracked on the speed sensor arm where the screw is that holds it to the main unit. So far it is holding in place, but it won't take much to break it loose. No speed sensor would only be a problem on a stationary bike since the GPS can calculate speed on a moving bike. Cadence is what I really wanted this for to begin with.

Since the speed arm seems fragile, I don't think I would recommend using this on serious mountain bike rides.

Digital camera Review: Doesn't work as advertised
Summary: 1 Stars

I have this sensor on my road bike (works great), and thought I would get one for my mountain bike. This second sensor will not 'connect' with my Edge 305, and I've tried almost everything.

My Edge 305 picks up the other sensor on my road bike but will not recognize this second sensor. I believe it to be a technical issue about using two different sensors. Also, according to the instructions if you lose the GPS signal the sensor should be able to track speed and distance through this sensor---it doesn't work.

Digital camera Review: Don't Buy If You Have An Irregular Bike Frame(Chainstays especially)
Summary: 3 Stars

I used this product for many years successfully on my Cannondale R600 road bike, but I recently purchased a new triathlon/TT bike(Quintana Roo Caliente) and now the cadence sensor is too far away from the crank arm to work properly. The rear chainstays on new bike are narrow near the bottom bracket and curve out as the go towards the back axle(for aerodynamics). The distance from the chainstay is a couple inches from the crank arm and I would need a 2 inch block to get the crank magnet close enough to the sensor so it reads. So make sure that your cranks are fairly close to your chainstay if you want the cadence to work. The speed sensor works fine so riding on the trainer tracks my speed ok.
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