Tandem Cycling - Cadance magnet ideas

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R900
05-16-07, 07:23 PM
I installed an extra Garmin speed/cadance sensor on our tandem, the problem is there isn't enough room for the magnet to clear the timing chain. I've thought of maybe using epoxy and a plain magnet, but wasn't sure if that would work. The Ritchey pedals install with a allen wrench, so I can't really cover that. Any ideas?

cornucopia72
05-16-07, 07:45 PM
The Garmin suplied magnet barely clears the chain in our tandem. It is just a magnet... I think any magnet, as long as the sensor reads it, it should work.
TandemGeek
05-17-07, 04:51 AM
It is just a magnet... I think any magnet... should work.

+1

Fenlason
05-17-07, 05:33 AM
brainb was just mentioning in another thread.... rare earth magnets. They are very powerful. they can come in very small sizes and you just glue them on.

glenn
brianb
05-17-07, 08:43 AM
Yes, go to radio shack, buy a small rare earth magnet, and attach with superglue or silicon. I have used magnets that are 1/16" diameter glued to bladed spokes, and the computer always worked fine. They are only a couple bucks for a 5 pack, good luck!!!
zonatandem
05-17-07, 12:50 PM
Quite sure Ritchey pedals can also be removed with a pedal wrench . . .
R900
05-17-07, 01:46 PM
Thanks guys, I think :-). The Ritcheys are older SPD's so I can only use a allen wrench. The Garmin magnet hits the timing chain, so I was hoping for something at would give a little more clearance. I'll head down to Radio Shack, so to attach the magnet to the crank - silicon? I can't see super glue holding on the polished crank. Thanks.