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Old 12-09-06, 09:53 AM   #1
Katzenjammer
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Wheel doesn't rotate in a plane

The back wheel on my urban monster doesn't quite rotate in a plane anymore. I discovered that by adjusting the brakes down close and finding that as the wheel rotated, there's one patch where the rim would hit first one brake pad and then a moment later, the other.

Does that sound like an adjust-the-spokes problem or a replace-the-rim problem?
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Old 12-09-06, 10:03 AM   #2
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...Yes.

If the spokes can be SAFELY adjusted (i.e. You're not having to loosen spokes to the point they have little or no tension, or far too much tension) than it's simply spoke adjustment. Otherwise yeah, it's time to go shopping for a new rim...

In any case you can try adjusting the spokes first, if the rim's already shot adjusting the spokes probably wont do much more damage than already present. If in doubt run it down to the local shop and they should be able to give you an honest assessment of it.
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Old 12-09-06, 11:22 AM   #3
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Check the spokes on each side of the rim where it's bent. If the spokes feel tight, like they are pulling the rim over to one side, then adjusting the spokes will fix it. If the spokes feel loose on the side where the rim is bent, then your rim itself has been compromised and it'll never make a good wheel again.

Unfortunately, the second case is by far the more likely.
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Old 12-09-06, 03:05 PM   #4
Katzenjammer
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bummer. Thanks, guys.

What's the best place on the web to learn the arcane art of adjusting spokes?
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Old 12-10-06, 07:48 PM   #5
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Quote:
Originally Posted by Katzenjammer
bummer. Thanks, guys.

What's the best place on the web to learn the arcane art of adjusting spokes?
Start with Sheldon Brown's wheel truing instructions.

Al
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Old 12-10-06, 07:49 PM   #6
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If you have not done it before, I would consider taking your wheel into a shop and having it trued.
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Old 12-10-06, 09:00 PM   #7
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Quote:
Originally Posted by Retro Grouch
Check the spokes on each side of the rim where it's bent. If the spokes feel tight, like they are pulling the rim over to one side, then adjusting the spokes will fix it. If the spokes feel loose on the side where the rim is bent, then your rim itself has been compromised and it'll never make a good wheel again.

Unfortunately, the second case is by far the more likely.
Really? What makes it so likely to be rim damage and not just a minor trueing situation?
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Old 12-10-06, 11:42 PM   #8
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Really? What makes it so likely to be rim damage and not just a minor trueing situation?
Experience! .
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Old 12-11-06, 09:06 PM   #9
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Quote:
Originally Posted by Katzenjammer
The back wheel on my urban monster doesn't quite rotate in a plane anymore.
Will it rotate on a boat? Will it rotate on a train?

Oh, Dr. Seuss where are you when we need you?
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