magnets qq
blablablacksheep
Posts: 1,377
Quick question, just bought some
http://www.ebay.co.uk/itm/Neodymium-Dis ... 000wt_1139
Planning to stick one of these inside the gap on the other side of the crank where the pedal is, so i dont have to use my Garmins magnet which is ugly and really not very tidy.
will this work? i have done this on a recommendation from reading around, but just wanted to check as i know they quite strong and don't want them to interfere with the electronics/GPS/cadence sensor ect or cause a accident ie (somehow get me wrecked)
http://www.ebay.co.uk/itm/Neodymium-Dis ... 000wt_1139
Planning to stick one of these inside the gap on the other side of the crank where the pedal is, so i dont have to use my Garmins magnet which is ugly and really not very tidy.
will this work? i have done this on a recommendation from reading around, but just wanted to check as i know they quite strong and don't want them to interfere with the electronics/GPS/cadence sensor ect or cause a accident ie (somehow get me wrecked)
London2Brighton Challange 100k!
http://www.justgiving.com/broxbourne-runners
http://www.justgiving.com/broxbourne-runners
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Comments
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Will work fine. Done it on 5 bikes now0
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Yes they'll work OK. When I first went down this route I bought a magnet which was too large and I noticed that I got erroneous speed readings from my speed / cadence sensor. There are two 'receivers' which measure speed and cadence in the sensor which attaches to your chainstay. I think (although someone more knowledge than I may come along and rubbish what I'm about to say) that in my case the magnet on my pedal crank was too powerful and was influencing the 'speed receiver'. The speed receiver was getting an input from the wheel magnet AND the cadence magnet.0
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How do you securely fasten these to your cranks with out damaging the lacquer?0
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I think you stick them on the end of the pedal spindle - so they dont touch the cranks.
Just bought some myself.0 -
apreading wrote:I think you stick them on the end of the pedal spindle - so they dont touch the cranks.
Just bought some myself.
Cheers, just bought some, do you stick them on with Araldite then?0 -
They are supposed to be REALLY powerful magnets - pedal spindle is metal - so no need for glue.
see http://i.ebayimg.com/t/Stealth-MAGNET-f ... ~60_57.JPG0 -
Velonutter wrote:apreading wrote:I think you stick them on the end of the pedal spindle - so they dont touch the cranks.
Just bought some myself.
Cheers, just bought some, do you stick them on with Araldite then?
No, you'll find they just are easily magnetic enough to just pop on the pedal spindle and hold, no glue. 2 seconds flat.0 -
Brill Thanks MFin0
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mfin wrote:Velonutter wrote:apreading wrote:I think you stick them on the end of the pedal spindle - so they dont touch the cranks.
Just bought some myself.
Cheers, just bought some, do you stick them on with Araldite then?
No, you'll find they just are easily magnetic enough to just pop on the pedal spindle and hold, no glue. 2 seconds flat.
They are really powerful magnets, you need to take care when handling them. If you order them on ebay and they don't arrive its probably because they have stuck themselves to the inside of the postie's van!0 -
yep - mine arrived today - wrapped in bubble wrap and in a jiffy bag.
The jiffy bag is stuck to the radiator behind my desk as I type...!0 -
Velonutter wrote:Brill Thanks MFin
Unless you have Ti spindles, then they'll need glue as Ti contains no magnetic witchcraft particles if I remember correctly!0 -
Both my bikes have nedidiium(sp) rare earth cadence magnets. Had to buy a pack of ten so have eight on the side of the cooker.I've added a signature to prove it is still possible.0
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Do these bad boys mess with heart rate monitors etc ? Also does anyone know of any reason why they would not work with the cadence unit of a Polar CS200CAD ? My Polar magnet got knocked off and a replacement is £6.49 !!A person who aims at nothing is sure to hit it
Canyon Aeroad 7.0 summer missile
Trek 2.1 winter hack0 -
If your heart rate monitor is anywhere near you pedals they might, but I cant think why you would ride a bike like that...!0
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apreading wrote:If your heart rate monitor is anywhere near you pedals they might, but I cant think why you would ride a bike like that...!A person who aims at nothing is sure to hit it
Canyon Aeroad 7.0 summer missile
Trek 2.1 winter hack0 -
apreading wrote:If your heart rate monitor is anywhere near you pedals they might, but I cant think why you would ride a bike like that...!
And you'd need to be alternating your HRM being near the pedals and then not near the pedals!
TBH, aside from the Ti spindle issue, I don't get why the computer manufacturers don't put these in as standard. They are soooo much better than ordinary magnets. They provide proper mounts for the computer rather than bits of blue tack and gaffer tape so why not do the same for the cadence sensor?Faster than a tent.......0