Weighing a bike

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Old Jul 3, 2008 | 08:34 AM
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Default Weighing a bike

There is always talk about how much a bike weighs but who really knows?

If you put one wheel on one set of bathroom scales and the other wheel on another, does adding the 2 together give the total weight?
I imagine it does as the total load is spread over 2 contact points.

Who has 2 sets of scales and wants to try it?
(I don't even have 1 as "her in doors" has banned them)
(some feminist thing about girls and body image I think, but I'm too frightened/smart to ask)
 
Old Jul 3, 2008 | 09:31 AM
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Default RE: Weighing a bike

someone has done it already, the klx was like 272 + - a few i think....
 
Old Jul 3, 2008 | 02:06 PM
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Default RE: Weighing a bike


ORIGINAL: neilaction

There is always talk about how much a bike weighs but who really knows?

If you put one wheel on one set of bathroom scales and the other wheel on another, does adding the 2 together give the total weight?
I imagine it does as the total load is spread over 2 contact points.
Yes, that will work. Or take one scale and a 4x4 rail balanced in the middle on the scale and run the bike up on that, both wheels resting at either end of the rail, then subtract the weight of the rail. That should work also.
 
Old Jul 3, 2008 | 07:48 PM
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Default RE: Weighing a bike

I would think that 1 scale with the board would probably be more acurate.
 
Old Jul 4, 2008 | 12:53 AM
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Default RE: Weighing a bike

I might try 1 scale under the bike stand.
That should work.
I'll go and buy one today and try it on the weekend.
 
Old Jul 4, 2008 | 01:36 AM
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Default RE: Weighing a bike

I've seen how they way Horses, that would probably be ideal, with the big straps aroung the frame etc.. Now just need to find someone that has a horse weighing machine or similiar..

Chris.
 
Old Jul 4, 2008 | 10:11 AM
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Default RE: Weighing a bike

Sometimes technology can conspire against you.
I bought a set of bathroom scales today.
Digital with a range up to 150kgs.
Perfect?
Nope.[:@]

Firstly you turn it on by stepping on it.
No probs there, a quick snip of a few wires and run the wires outside means I can now switch it on at will without having to step on the scales.

But, when you step on it to turn it on, you are then supposed to wait for it too zero then you step back on and it displays a reading.

So when I placed the scales under the bike, jack it up and turn it on, it zeros with the weight of the bike already on it.[:@]

Back to the drawing board.
I need to turn it on, wait till it zeros and then get the bike on.
On my own, that isn't easy.

mmmm
Of course had I bought an old fashioned mechanical set of scales, this would not have been a problem.

But it's too late to turn back.
OCD Neil must resolve this and tomorrow it will be done.
I'm thinking trolley jack.


 
Old Jul 4, 2008 | 01:46 PM
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Default RE: Weighing a bike

Neil a good idea too would be to have all of the gas drained out of the tank. That way there is no guessing as to how much there is in it.
 
Old Jul 4, 2008 | 03:17 PM
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ORIGINAL: 2k1w=no$

Neil a good idea too would be to have all of the gas drained out of the tank. That way there is no guessing as to how much there is in it.
Yep, already done.
I need to work out a quick way to get the bike on the scales.
 
Old Jul 4, 2008 | 06:04 PM
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Default RE: Weighing a bike

If you have a hydraulic jack type bike lift you can crank it up, put the scales under each wheel, then turn them on to let the zero, then let the lift down which should do the trick.

 



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