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Uneven weld on road bike tire?

Old 06-22-23, 12:53 PM
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Uneven weld on road bike rim?

Hello good people, I am hoping to get back into riding for fun after a few decades away from it, only doing minor commuting. I picked up a nice old Trek and put new tires on but on a test ride noticed a bump on the front tire when applying the brake. Upon visual inspection, I thought I had a cracked rim but now have determined that the issue is just where the rim is welded together (if that is the proper terminology?) I noticed the back rim has it also but is a smooth weld on the back wheel. When I apply the brake I get a "whoomp -whoomp" feeling as the pad rides over that mark. If you know vinyl records, you'd call it a bad "feeler" ! Is there any solution other than a new wheel (which I already bought when at first I thought it was cracked!) Appreciate any info.
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Old 06-22-23, 01:02 PM
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If the issue is a gap, feel free to ignore it. With some wear it'll improve.

OTOH if it's s raised lump, you'll want to file it flush so the brake won't pulse as it comes by. It's easily solved with a file or sandpaper on a block.
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Old 06-22-23, 02:00 PM
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Are you sure the rim isn't dented in some way? Use care filing off metal. Don't want to get too thin

FWIW the rims are typically pinned. Rims with welded joints are generally more expensive.
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Old 06-22-23, 02:36 PM
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Originally Posted by FBinNY
If the issue is a gap, feel free to ignore it. With some wear it'll improve.

OTOH if it's s raised lump, you'll want to file it flush so the brake won't pulse as it comes by. It's easily solved with a file or sandpaper on a block.
Yeah, pulsing is a good description. I will try sanding.......kind of thought of that after sending my post but still would have needed a second opinion so thanks.
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Old 06-22-23, 06:04 PM
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IF this is a non disc brake front, try swapping the rim "direction. It might make a pleasurable difference.
Sometimes, one direction you're "shaving brake pad" and the other you're running over a ramp.
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Old 06-23-23, 07:59 AM
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Originally Posted by Bill Kapaun
IF this is a non disc brake front, try swapping the rim "direction. It might make a pleasurable difference.
Sometimes, one direction you're "shaving brake pad" and the other you're running over a ramp.
Yes, that's not a bad idea at all, thanks!
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Old 06-23-23, 08:49 AM
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Originally Posted by Bill Kapaun
Sometimes, one direction you're "shaving brake pad" and the other you're running over a ramp.
That is an interesting yet perfectly descriptive definition of that problem.
You actually gave me a visual.
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