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Old 09-07-11, 12:05 PM   #1
Troywanker
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speedo magnet swap??

I just got a cateye vectra from a friend but its missing the magnet......can I use any ol' speedo magnet or are they model specific? also where would I find a manual on how to set the durn thing up or if anyone would mind explaining thatd be helpful. thanks!
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Old 09-07-11, 12:10 PM   #2
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Magnets are magnets as far as the sensor is concerned. Use any bike magnet you want

Aso try using Google to search for certain documents that you want to find. As an example, searching for "cateye vectra manual" or "cateye vectra .pdf" will probably turn up results related to the search input.
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Old 09-07-11, 12:12 PM   #3
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given the magnet is just the trigger for the pulse of current made in the sensor,
I'd say any would do , some stay in position better than others..
set-screw into the spoke sorts..
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Old 09-07-11, 12:27 PM   #4
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I've also heard that some magnets are more powerful than others. So if you can glue a rare earth (?) magnet onto the magnet that's already on there, you might bet more accurate sensing of the signal without it having to be quite as close to the sensor. Just something I heard so may not be accurate at all.
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Old 09-07-11, 02:11 PM   #5
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My theory is that a magnet is a magnet. BUT-I have had a computer many years ago that did not work with any other magnet than the one supplied for it. No idea why and never had it with any other computer. In fact My Ultegra wheels came with a Shaped spoke specific Magnet for those spokes and it works on the cat eye computers and my Garmin Edge GPS.

And find the Cateye website and details of set up should be on there.
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Old 09-07-11, 06:16 PM   #6
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I've also heard that some magnets are more powerful than others. So if you can glue a rare earth (?) magnet onto the magnet that's already on there, you might bet more accurate sensing of the signal without it having to be quite as close to the sensor. Just something I heard so may not be accurate at all.
Actually you don't have to glue it. My cadence magnet on the crank was too far from the sensor to work reliable so I just left it where it was and stuck a rare earth magnet to it. Magnetism holds them as tight as glue. Has been reliable ever since.
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Old 09-07-11, 07:24 PM   #7
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I have lost more than a few magnets over the years, always got a universal replacement from the LBS, or used left overs from out of the spare parts box.

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Old 09-11-11, 04:01 PM   #8
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Small neodymium disc magnets are available at hobby lobby in packs for a few bucks.
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Old 09-11-11, 06:33 PM   #9
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Actually you don't have to glue it. My cadence magnet on the crank was too far from the sensor to work reliable so I just left it where it was and stuck a rare earth magnet to it. Magnetism holds them as tight as glue. Has been reliable ever since.

Steel cranks? This wouldn't work with aluminum cranks, since aluminium is not a magnetic metal.
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Old 09-11-11, 06:50 PM   #10
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Steel cranks? This wouldn't work with aluminum cranks, since aluminium is not a magnetic metal.
I took it to mean he stuck the second magnet to the original one.

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Old 09-12-11, 07:24 AM   #11
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I took it to mean he stuck the second magnet to the original one.

Aaron
That's correct the original magnet was on a bracket that was fastened to the crank with two tiewraps. I just stuck the rare earth one to it. I got a package of 10 from Harbor Freight for $1.50. I stuck a couple in my patch kit in case I loose one on the road, but so far haven't lost any.
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Old 09-12-11, 03:40 PM   #12
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Got it under controlled, my buddy had an old one seems to be workin fine. been loggin miles and seein how fast im goin.
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