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I've got a 27" wheel and it won't be true...

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I've got a 27" wheel and it won't be true...

Old 06-16-19, 09:31 AM
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mmcc73
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I've got a 27" wheel and it won't be true...

... according to the LBS mechanic. I took it in the other day and he said he wasn't able to get it round.

Here's a video:

It seems good laterally, but it has a couple low spots.

Is this anything to be concerned about? My inclination is just to keep riding on it.

This is a rear wheel on a mid 70's Dawes Galaxy. It is a Weinmann rim (aluminum, or at least non magnetic) on a Shimano large flange hub.
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Old 06-16-19, 09:35 AM
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The braking might be a little lumpy, but as long as the pads don't go into the tire, there's no reason not to just use it. I've used much worse for various amounts of time.
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Old 06-16-19, 09:42 AM
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I'm sure someone much smarter than me can speak more intelligently, but unless you are going to the Salt Flats to break a land speed record, take it for a ride and use your best judgement. You may never reach speeds to notice the imperfections. If you do - re-evaluate
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Old 06-16-19, 09:45 AM
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mmcc73
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Originally Posted by sdn40 View Post
I'm sure someone much smarter than me can speak more intelligently, but unless you are going to the Salt Flats to break a land speed record, take it for a ride and use your best judgement. You may never reach speeds to notice the imperfections. If you do - re-evaluate
I'm not terribly concerned about speed - I'm more concerned about catastrophic failure. I take it that isn't really an issue?
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Old 06-16-19, 10:03 AM
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Originally Posted by mmcc73 View Post
I'm not terribly concerned about speed - I'm more concerned about catastrophic failure. I take it that isn't really an issue?
In my non-expert opinion, it's all about speed. The wheel is sound until the speed is reached which reveals the imperfection. I don't know what speed that is. Your best judgement should be good enough. If you start feeling weirdness - it's too fast for that wheel. I think it's splitting hairs though.
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Old 06-16-19, 10:08 AM
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A song popped into my head as soon as I read the title.

I wouldn't worry about that. You won't even feel it.
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Old 06-16-19, 10:14 AM
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I've got a worse wheel on the front of one of my bikes right now. It appears the rim is literally bent. I've gotten over 30 MPH coming down a hill with it and never noticed any wobble or wumping. It's annoying to watch though as you ride and it makes me want to tweak on it all the time. But as far as catastrophic failure, what are you expecting to happen?
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Old 06-16-19, 11:48 AM
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I got a 27" wheel that wants to ball all day

I got a 27" wheel that stay drunk all the time

Hey, hey, what can I do?
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Old 06-16-19, 12:06 PM
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That's not bad at all, I wouldn't worry. Of course you could walk the town - keep a searchin' all around - lookin' for a street corner wheel.
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Old 06-16-19, 12:38 PM
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Just name the wheel Maybellene and get it over with.
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Old 06-16-19, 12:57 PM
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Unless that rim is being made more round by means of uneven spoke tensions, It looks perfectly serviceable to me and I doubt that I would notice it ever.
In some cases, a mounted tire may either help or exacerbate a rim's out-of-round condition, depending on how the tire is positioned rotationally, so you could try moving the tire around if the out-of-round condition is worse at the tire tread than it is at the rim.

A rim's durability is hugely dependent on the uniformity of spoke tension and on the weight loading, so as the weight loading is increased then a higher standard of spoke tension uniformity should be applied. With some bent rims, a limit is reached here and the correct action would be to replace the rim, especially with single-walled or lighter weight rims and/or with lower spoke counts.
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Old 06-16-19, 01:15 PM
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It sounds like the answer to (hey hey) what should I do is nuthin. That is my favorite kind of advice.

Thanks!
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