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  • Garmin GSC 10 Speed/Cadence Bike Sensor
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Garmin GSC 10 Speed/Cadence Bike Sensor

by Garmin
| 79 answered questions

List Price: $60.00
Price: $36.99 & FREE Shipping. Details
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  • Cycling speed sensor for select Garmin wrist-mounted personal trainers and cycling computers
  • Self-calibrating, wireless design measures both cycle speed and cadence in pedaling strokes per minute
  • Provides up-to-the-minute feedback or captures results for later workout analysis
  • Compatible with Garmin Edge 305, Edge 305CAD, and Forerunner 305
  • Attaches easily to any bicycle; 1-year warranty
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Frequently Bought Together

Garmin GSC 10 Speed/Cadence Bike Sensor + Garmin Premium Heart Rate Monitor (Soft Strap) + Garmin Edge 500 Cycling GPS (Neutral Color)
Price for all three: $278.47

Buy the selected items together


Product Information

Technical Details
Item Weight0.3 ounces
Product Dimensions3 x 2.2 x 2.7 inches
Item model number010-10644-00
Batteries:1 Lithium Metal batteries required.
Display Size2.7 inches
Warranty1 year parts, 1 year labor
Battery Life10 hours
  
Additional Information
ASINB000BFNOT8
Shipping Weight1 pounds (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S.
Date First AvailableDecember 12, 2001
  
Warranty & Support
Warranty, Parts: Parts
Feedback
 

Technical Details

  • Wireless, Self-calibrating

Product Description

Amazon.com

A good companion for Garmin's Edge series cycle computers and the Garmin Forerunner series, 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.

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.

Product Description

Garmin SENSOR SPEED/CADENCE (GSC 10) EDGE 010-10644-00 GPS Starter Kit

Customer Questions & Answers

Customer Reviews

Installation and setup were easy, it works great.
J. adkins
What is happening is that the batteries are completely drained within the 1-2 days (I confirmed the batteries are dead by trying them in a device that I know works).
jlonker0522
The install is easy (two zip ties), and it worked with my existing magnets.
E. Engberg

Most Helpful Customer Reviews

223 of 226 people found the following review helpful By Brad Jackson on November 22, 2007
Verified Purchase
Another handy piece of equipment from Garmin!

This kit comes in three basic parts; a sensor unit, which is about the size of a matchbox, and two magnets about the size of your pinky nail. Several zip-ties are included for mounting purposes; the entire kit weighs at most a couple of ounces.

Installation is pretty straightforward, but do follow the directions carefully and don't snug down the zip-ties until you're sure you've got all three components just where you want them and have tested the system!

The sensor mounts to the left chain stay with a pair of zip-ties. Garmin thoughtfully added a piece of rubber padding to the bottom of the sensor unit, so it won't rough up your fancy carbon frame or your paint job :)

A single zip-tie attaches the crank magnet to the crank, although I had to use a large (3/4") shim on my FSA crank (which has a curved profile and a hollow back) to place the crank magnet in the proper position for the sensor to "see" it. The spoke magnet clamp has both a round hole and a square hole; make sure you use the right hole for your spoke profile! I mounted mine on a spoke directly opposite the tire valve, just to help keep the wheel in balance.

The sensor unit must be positioned along the chain stay such that it can "see" both the crank magnet as it passes by the cadence sensor (the round part on the side of the sensor unit), and the spoke magnet as it passes the speed sensor (the part that looks like a lever in the picture).

Testing is accomplished by pressing a small button on the sensor unit, which prompts it to flash a red LED, then a green one to indicate that testing is started.
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90 of 92 people found the following review helpful By Marty J. Solomon on February 17, 2008
The handlebar mount and cadence and speed sensors went on quickly and worked flawlessly. However, when I first received the package in the mail, I was concerned I had ordered the wrong item. I have a Forerunner 305 wrist-mounted GPS, and all of the packaging for this product references the Edge GPS sensor, so I didn't know whether or not this would even work with the Forerunner. There are very slight differences in navigating the menus to set up the cadence sensor between the Forerunner and the Edge, but the cadence sensor does indeed work very well with the Forerunner, so Forerunner owners order without fear!
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36 of 37 people found the following review helpful By kes on June 22, 2011
Verified Purchase
I'm on my second unit. Both suffer from water intrusion. I cut away the plastic housing so I could see what was making the sensor fail and sure enough the circuit board had lots of corrosion after I washed my bike. The second unit I try to seal using silicone in the battery compartment, wheel speed screw hole, and wire hole for the wheel speed reed switch. To no avail it somehow still got water inside the unit and is now failing.
If you use your bike only on an indoor trainer then you can purchase this unit, if you go outside you are wasting your money.

EDIT:
I was able to seal up the unit better with the third unit using household silicone. So far so good. If you buy this product you will need to seal up the battery compartment, the sensor wire hole(remove screw from wheel speed sensor and pull apart), and the wheel speed sensor screw itself.

I really like the dual sensor once it gets sealed up.
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29 of 30 people found the following review helpful By Susan on October 13, 2009
I'm a big fan of Garmin computers, and especially the mapping features of the 705. If there were any other computer that did what theirs does, the GSC-10's sensitivity to water would be an unacceptable design flaw. It's supplied with zip-ties (requiring a cutting tool to remove it), yet it won't tolerate even a small amount of water such as from washing one's bicycle or riding in light rain for over an hour. Garmin is honorable and will replace drowned GSC-10's under warranty. (I'm on my third one.) But it's really unacceptable to have to remove the sensor any time I wash my bike and any time rain is anticipated, and to have to do without it for a couple of weeks, or longer, any time I get rained on unexpectedly. They're replacing so many of these that, after a wet spring in the eastern USA, my last warranty replacement was backordered for five weeks.
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21 of 23 people found the following review helpful By Amazon Customer on August 13, 2006
It has worked flawlessly on my TT and road bike. I use one Edge 305 and switch between bikes. When switching, you must go to the "Accessories" menu and rescan for the sensor. You must set this up exactly according to the directions and check the LED's in a dark room. You can not see them in a room with normal lighting. I do a fair amount of cadence based training and this cadence sensor has proved flawless.
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13 of 13 people found the following review helpful By Rollie74 on April 20, 2008
Verified Purchase
What a great training tool! I did not have a computer for my bike, but have been using my Garmin Forerunner 305 while running for some time now. I decided to purchase the cadence sensor, and am glad I did, what a great training tool and it has helped me improve my riding significantly. Highly recommended if you are serious about riding.
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56 of 68 people found the following review helpful By Ron Henson on February 24, 2006
Verified Purchase
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.
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