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Old 05-24-10, 08:42 AM   #1
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Join Date: May 2010
Location: Surrey, England
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Garmin Edge 705 Cadence sensor

Hey guys,

Just a quick question regarding the Cadence sensor on the Edge705. The Last couple of days i've been looking down and seeing the magnet on the crank looking a little loose. Stuipidly i didn't do anything about it!
Anyway today i looked down at the screen and noticed despite doing about 20mph i wasnt actually pedaling...according to the cadence display. The magnet had come off.

Is it just a magent and replaceable without getting one from garmin?

Anyone got any good ideas on how to fix it more securely, the sticky strip and cable tie did &*%$ all to be honest.

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Old 05-25-10, 08:37 AM   #2
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Same thing happened to me. I purchased a magnet for the window contacts on a house alarm. It has two sided tape as well. I filed a groove in the middle and edges of the magnet for the cable tie to keep the magnet from sliding.
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Old 05-25-10, 09:02 AM   #3
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You can get powerful "rare earth" magnets from hobby shops, Radio Shack (find one that still stocks electronic parts), or a billion places online.

Double stick tape is OK, but poxy is forever!
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Old 05-25-10, 03:28 PM   #4
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I just wrap electrical tape a couple of times around the crank over the magnet. keeps it from sliding around (a problem I've had) and keeps it on the crank.
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Old 05-25-10, 04:07 PM   #5
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I used silicone to support the bond. It does remove if needed.
I also have flat spokes that holds the magnet tighter, but on my bike with round spokes, a little silicone under the magnet helps too.
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