Speedo/computer thi...
 

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[Closed] Speedo/computer things & magnets

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Posts: 12329
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Are they all equal?

Just pieced together an old spesh wired computer, but waggling a wheel magnet of unknown provenance past the sensor is registering nothing.

I suspect it's the sensor that's knackered? 🙁


 
Posted : 07/06/2015 7:46 pm
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A magnet is a magnet...


 
Posted : 07/06/2015 7:49 pm
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Yeah magnets are magnets in this situation.


 
Posted : 07/06/2015 7:50 pm
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Yeah, I felt stupid asking the question! Just at a loss why a wired sensor (reed switch?) would pack up.

Oh well, arse.


 
Posted : 07/06/2015 7:52 pm
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Are you just looking for a basic wired one for speed?


 
Posted : 07/06/2015 8:49 pm
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I am a cock, just in case it was ever in doubt.

I was getting frustrated as to why it wasn't working, so unraveled the whole cable.

"Huh. That's long"

*brain ticks over ever so slowly....remembers last bike it was on*

"Oh"

It's not a wired computer, it's wireless.

I've been cleaning contacts, holding the wired sensor up to my ears and general mucking about.....against the cadence sensor.

Found the wireless sender for forks - worked straight off.

Nob.

However, I only have a wheel magnet - does anyone have a crank arm magnet thing please? I never took it off the last bike this speedo was used on (can you tell I haven't ridden for some time?)

Ta 😳


 
Posted : 09/06/2015 7:19 pm
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I lost our running total milage for my "round the world" trip by standing next to a huge substation in Australia. It added 15,000km in a couple of minutes 😆


 
Posted : 09/06/2015 7:23 pm
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Crank magnets can be bought, cateye do themfor one.


 
Posted : 09/06/2015 7:24 pm
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I'm sure they can be bought, I'm just punting on an opportunity that some kind soul my have one in their spares box.


 
Posted : 09/06/2015 7:35 pm
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I just used a rare earth magnet i had kicking around and it just sticks to the pedal axle.

I don't think i have any left but I'll look.


 
Posted : 09/06/2015 8:36 pm
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that some kind soul my have one in their spares box.
Used to have one but stuck it on a friend's bike as an 'extra' - he thought he was going twice as fast as he was 🙂 . Amusing when he found out


 
Posted : 09/06/2015 9:21 pm
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As above, any decent small magnet. You can put a wrap of tape around it if it won't stick to your crank or pedal spindle. I've got a spare spoke-mounted one (somewhere??) if that's any good


 
Posted : 10/06/2015 4:46 am

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