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RIM DAMAGE, best way to address?

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RIM DAMAGE, best way to address?

Old 10-23-08, 10:04 PM
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dennis_said
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RIM DAMAGE, best way to address?

So today while doing a few adjustments and taking my bike for a ride I noticed that when I use my rear brake that I hear a little "bump" sound... it only occurred when I use the REAR brakes... and only at the proper intervals (if the wheel is spinning fast the bump sound more frequent... slow then less frequent)...

I pull back home check the rear rim, and realize that at the outer edge of the rim has a CHIP, about the size of a ball point pen gouge. Will this have any bearing aside from the annoying "bump" sound when I use my rear brake? Should I make an attempt to "resurface" the rim?

Please advise, thanks
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Old 10-23-08, 10:08 PM
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ridethecliche
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Picture?

That thing might ruin your pads and compromise braking a little bit.
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Old 10-23-08, 10:10 PM
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Never wrenched, so, that's something I'd ask at the LBC.
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Old 10-23-08, 10:19 PM
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I can't see a picture of the rim, but as long as it's not in danger of failing, I'd likely try to sand the spot down so it doesn't hurt the brake pads and continue riding it.

Originally Posted by schnabler1
Never wrenched, so, that's something I'd ask at the LBC.
??? LBC or LBC?
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Old 10-23-08, 10:33 PM
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It's at the very edge of the braking surface... very edge, that's what I was planning on doing actually the whole sanding thing! But just wanted to make sure it would be okay
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Old 10-24-08, 06:28 AM
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Are you sure that's what's causing the irregular braking? A little chip like that should just rip a little groove into the pad, and you'd never know about it again. I would suspect that the rim wall is actually bent there or elsewhere, and it could be bent back with careful use of an adjustable wrench (pliers would gouge).

Anyway, for a chip, snag, or ridge, sand paper is fine.
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Old 10-24-08, 06:30 AM
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Occasionally I get a 'bump' from my rim joint when braking, but it tends to just go away after a while. I think it has to do with temperature, but am not sure.

As for a chip that small, I wouldn't worry about it unless you're doing 15 mile mountain descents regularly.
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Old 10-24-08, 06:33 AM
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"Helllloooooooo Rim"
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Old 10-24-08, 10:05 AM
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I had the same problem. See here:

https://www.bikeforums.net/road-cycling/434858-how-bad.html
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Old 10-24-08, 10:17 AM
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Originally Posted by mrbUSA
"Helllloooooooo Rim"
Dated. But so am I. So still
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Old 10-24-08, 01:52 PM
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Thanks for all the help guys, I'm most certain it's there, I checked the rim to see if it was bent, looks all good otherwise for that chip, time to sandpaper it up

Thanks for the thread link sprintr
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