My tire tube is a mobius strip..?
04-29-06, 06:57 PM
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My tire tube is a mobius strip..?
I bought a 700x25 presta tire tube from the shop today, and I was just folding it up when I realized that it was a mobius strip. Meaning that it's one sided (running your finger along one side will end you up on the other). I guess it wouldn't affect the cylindrical shape of the tire once I inflated it, but isn't this sorta funky? I don't remember any other tire tubes before being like this.. and it sorta makes folding it up kinda weird. What's the deal? Maybe I should get a new one?
(mobius strip)
(mobius strip)
04-29-06, 07:24 PM
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Well, at least it isn't a tesseract. Send it to me so I can brag that I have a mobius tube!
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04-29-06, 08:46 PM
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And if you put it on your bike and pedal fast enough, your tire will traverse to another dimension! 
Out of curiosity, who made the tube?
Out of curiosity, who made the tube?
04-29-06, 11:35 PM
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I've gotten a couple of those (I like contis, but my LBS only carries specialized). Put a small puff of air into them and you can work the mobiusness out.
04-30-06, 01:20 AM
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Originally Posted by the beef
Haha, it's a Specialized. Really weird.
04-30-06, 08:50 AM
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Yep, a lot of them seem to be like that. Here's what I do, mix up 2 parts pinesol, 1 part bleach, and 4 parts hot water, and then you can scrub the Mobius off the tube before installation................
05-11-14, 08:08 AM
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Dudes, If it's a bike tube, it's a torus, topologically speaking, not a Mobius strip.
The Mobius Band and Other Topological Surfaces
The Mobius Band and Other Topological Surfaces
05-11-14, 08:13 AM
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Oh good...because that has totally been bugging me for 8 years.
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05-11-14, 08:32 AM
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Dudes, If it's a bike tube, it's a torus, topologically speaking, not a Mobius strip.
The Mobius Band and Other Topological Surfaces
The Mobius Band and Other Topological Surfaces
05-11-14, 09:06 AM
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Speaking of Specialized tubes. What exactly are they trying to tell us with the 'instructions' on the back of the box?
05-11-14, 09:24 AM
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They seem to be saying
* push the tube into the tire in the direction shown by the arrow;
* be sure the tube width matches the tire width;
* be sure the tire bead is seated under the bulge in the rim edge'
* re-check that the bead is still seated on both sides after inflating the tube a little, to 15 psi, before fully inflating it.
* push the tube into the tire in the direction shown by the arrow;
* be sure the tube width matches the tire width;
* be sure the tire bead is seated under the bulge in the rim edge'
* re-check that the bead is still seated on both sides after inflating the tube a little, to 15 psi, before fully inflating it.
05-11-14, 09:32 AM
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05-11-14, 09:33 AM
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But you can draw a mobius strip on it. If you want to. Then while you're riding, you could think about the Mobius strip rolling around inside the tire, and visualize what if the strip was always down against the road and how would the bike have to transform in hyper-dimensional space to make that happen ...
05-11-14, 10:04 AM
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But my understanding of a Klein bottle is that it is a 3D (4D, actually I suppose) equivalent to a Mobius strip. I.e. it has only one side/surface and is therefore non-orientable.
05-11-14, 10:12 AM
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How could you crash if you're tooling around inside a Klein Bottle? You'd just twist around obstacles in the fourth dimension, perfectly safe.
hey if I'm right we could probably calculate the size of the Klein bottle given the tire's diameter. Something else to while away the Z2 boredom.
05-11-14, 01:14 PM
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They seem to be saying
* push the tube into the tire in the direction shown by the arrow;
* be sure the tube width matches the tire width;
* be sure the tire bead is seated under the bulge in the rim edge'
* re-check that the bead is still seated on both sides after inflating the tube a little, to 15 psi, before fully inflating it.
* push the tube into the tire in the direction shown by the arrow;
* be sure the tube width matches the tire width;
* be sure the tire bead is seated under the bulge in the rim edge'
* re-check that the bead is still seated on both sides after inflating the tube a little, to 15 psi, before fully inflating it.
