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Cadence Magnet

Old 06-09-13, 08:19 PM
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Planemaker
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Cadence Magnet

Ok, so the cadence magnet for my new Garmin Edge 510 fell off and was lost. I was thinking about going to Harbor Freight and picking up a package of 10 Rare Earth Magnets that measure 5/16 in diameter and 1.8 inch thick. I was going to attach the magnet to the crank with a super strong adhesive/sealant that I have.

Technically, I may not have to get the magnet as close to the unit on the bike because these magnets are much stronger than the magnets than stock magnets.


Do you guys think this will work?
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Old 06-09-13, 08:21 PM
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DnvrFox
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Why not contact Garmin and have them send you another magnet? Or your local LBS likely has a spare sitting around that will work.
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Old 06-09-13, 08:34 PM
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Planemaker
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Originally Posted by DnvrFox View Post
Why not contact Garmin and have them send you another magnet? Or your local LBS likely has a spare sitting around that will work.
Going to do both but, just in case the LBS doesn't have one this is my backup plan until I can get one from Garmin.

FYI - A package of 10 magnets is about $3.00
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Old 06-09-13, 08:36 PM
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Originally Posted by Planemaker View Post
Going to do both but, just in case the LBS doesn't have one this is my backup plan until I can get one from Garmin.

FYI - A package of 10 magnets is about $3.00
Anything that works is great. I have had suppliers send me stuff free or at a low cost. I don't know about Garmin, however.
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Old 06-09-13, 08:38 PM
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kenji666
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Not much to lose with $3. Be careful with the extras around small children or pets:
http://www.myfoxaustin.com/story/222...l-for-children
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Old 06-09-13, 08:39 PM
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DnvrFox
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http://www.amazon.com/Garmin-Replace...cadence+magnet
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Old 06-09-13, 09:11 PM
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billydonn
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I have used these

http://www.amazon.com/Hidden-Profile...gnet+bontrager
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Old 06-09-13, 09:26 PM
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Originally Posted by Planemaker View Post
Ok, so the cadence magnet for my new Garmin Edge 510 fell off and was lost. I was thinking about going to Harbor Freight and picking up a package of 10 Rare Earth Magnets that measure 5/16 in diameter and 1.8 inch thick. I was going to attach the magnet to the crank with a super strong adhesive/sealant that I have.
Do your pedals have steel spindles? Most likely they do.
So buy a pack of 1/2" x 1/8" magnets, then put one on the backside of the pedal spindle, then stack as many as you need to get close enough to the cadence sensor to trigger it. No need for any kind of adhesive. They will *not* come off accidentally!
I do this on all my bikes.

Here is a pack of 10 for $8.35: http://www.amazon.com/gp/product/B00...ls_o02_s00_i00
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Old 06-09-13, 10:18 PM
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Originally Posted by Shimagnolo View Post
Do your pedals have steel spindles? Most likely they do.
So buy a pack of 1/2" x 1/8" magnets, then put one on the backside of the pedal spindle, then stack as many as you need to get close enough to the cadence sensor to trigger it. No need for any kind of adhesive. They will *not* come off accidentally!
I do this on all my bikes.

Here is a pack of 10 for $8.35: http://www.amazon.com/gp/product/B00...ls_o02_s00_i00
Thanks for the link and letting me know they won't fall off. The Rare Earth magnets at Harbor Freight are the same thing just a touch smaller.
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Old 06-09-13, 10:19 PM
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Yes, it will work well. I hate zip ties, and got this:
http://www.ebay.com/itm/Icarus-Caden...item3f1dbd37a0
It's a perfect fit, so kinda cool. No glue.
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Old 06-10-13, 06:47 AM
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Originally Posted by Planemaker View Post
FYI - A package of 10 magnets is about $3.00
$3.00 sounds like a deal for me. 3M automobile badge and trim cement is the adhesive of choice for a job like that. Get it at AutoZone or the like.
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Old 06-10-13, 07:16 PM
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Originally Posted by Shimagnolo View Post
Do your pedals have steel spindles? Most likely they do.
So buy a pack of 1/2" x 1/8" magnets, then put one on the backside of the pedal spindle, then stack as many as you need to get close enough to the cadence sensor to trigger it. No need for any kind of adhesive. They will *not* come off accidentally!
I do this on all my bikes.

Here is a pack of 10 for $8.35: http://www.amazon.com/gp/product/B00...ls_o02_s00_i00
Went Harbor Freight today and purchased a package of 10 magnets, which happened to be the exact number I needed. I attached the magnets to the pedal post and did not have to move the sensor on the chainstay, no adhesives were used. I road 20 miles trying to lose these things and they never moved.

I am believer. Thanks again.

FYI - Garmin is sending me a replacement at no charge
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Old 06-11-13, 09:43 AM
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I replaced my Garmin cadence magnet with a rare earth magnet .... works far better than the Garmin unit and I don't have those ugly tie wraps on my crank arm.
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Old 06-11-13, 12:24 PM
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One nickel plated, button magnet (1/2" x 1/16") on the inside end of my pedal and done! I've used the same magnet for almost three years and it's gone through two bikes. No straps, no ties! Just snap it on and go.
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