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Brake makes noise where wheel joins together...

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Brake makes noise where wheel joins together...

Old 10-19-11, 10:41 PM
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Jlomb436
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Brake makes noise where wheel joins together...

Hey folks.

I just bought a brand new CAAD10 and I'm loving it. Only have about 15 miles on it over the last 4 days (I know, not enough) but I've been a little hectic at work.

Anyway, the two times I took it out for a spin, I noticed that when I brake the front wheel, it will make a noise after every rotation. I happened to then figure out that where the one piece of metal merges on the wheel, it's not perfectly flat. Now I thought maybe one side was higher and the other lower, but they are both wide.. Thus the noise. What gives? Anything I can do? Should I contact Shimano? Not really wanting to file down my new wheel if you know what I mean.
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Old 10-19-11, 11:07 PM
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Too bad you don't want to file them down....because that's how you're going to get the noise to go away. Sorry.

The braking surface will wear down over time and the sound will evetually go away as your brake pads lap that joint, but a minute and a file and scotch brite pad can make it go away now.

Common - FWIW.
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Old 10-19-11, 11:24 PM
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Jlomb436
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Well, this is ym firts bike. I guess my question would be, is this terribly common?
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Old 10-20-11, 04:20 AM
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This happens to me too!! I just got my first roadie last week.. a Caad8 5.. The wheelset that it comes with are Maddux RS 3.0 Speed rims laced to formula hubs.. (the hub is quite a good quality hub tho) but the imperfect rim is on my rear wheel.. i hardly uses the rear brake so it is almost unnoticeable. I think it is quite common for a low quality wheelset or sometimes to the pinned rim (not the welded rim like those high end wheels). I did more than 300 km on the bike now.. i guess.. and the noise is not as loud now..
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Old 10-20-11, 07:26 AM
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Originally Posted by Psimet2001
Too bad you don't want to file them down....because that's how you're going to get the noise to go away. Sorry.
+1
That being said, I'm surprised a new bike is doing this. They have been machining the crap out of rim seams for quite a while now.
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Old 10-20-11, 07:29 AM
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I would take it back to the shop for them to have a look and file the frame down if needed then there shouldn't be any issues with the warranty.
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Old 10-20-11, 09:22 AM
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IMHO, This is a warranty claim - pure and simple.

Take it back to the LBS where you (presumably) bought it, and have them fix it. They'll probably just swap out the wheels with another new CAAD10, and send yours in to Shimano for a replacement.
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Old 10-20-11, 10:03 AM
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Wow....crazy. Really guys?

Rims are machined at the joint without having been spoked or tensioned. If the rim joint is anything other than massively welded (say pinned), then the rim has the potential of having the faces of the joint move under tension. On cheap/OEM wheels the rim quality is such that this is a higher potential.

It doesn't affect the quality of the rim, or the quality of the wheel or the build. It just bothers an occasional person.

5 seconds and the problem disappears.
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Old 10-20-11, 08:02 PM
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My bike shop happens to be an hour away, that's the unfortunate part. NOt really sure if thats worth the trip. Does no one else file them down except Psimet2001?
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Old 10-20-11, 08:15 PM
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I've always just put up with it, but next time it happens I might try Psimet's suggestion.
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Old 10-20-11, 08:26 PM
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Originally Posted by Jlomb436
My bike shop happens to be an hour away, that's the unfortunate part. NOt really sure if thats worth the trip. Does no one else file them down except Psimet2001?
It doesn't matter what we do. Psimet sees 1000's of wheels per year so his advice weighs more than ours.
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Old 10-20-11, 10:22 PM
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Originally Posted by Jlomb436
My bike shop happens to be an hour away, that's the unfortunate part. NOt really sure if thats worth the trip. Does no one else file them down except Psimet2001?
The last time I had this happen, I filed it down. The only problem was I overshot a couple of times and sanded the sticker a tad.
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Old 10-21-11, 06:48 AM
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Originally Posted by urbanknight
The last time I had this happen, I filed it down. The only problem was I overshot a couple of times and sanded the sticker a tad.
The few times I've had this situation, I've touched it up with a dremel with a fine grinding wheel. I just touch up the trailing edge of the seam. Yet another use for a dremel tool.
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Old 10-21-11, 06:57 AM
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I'm a filer. The only ones I've had to file recently were OEM wheels.
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Old 10-21-11, 07:17 AM
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OP, it seems a bit scary taking a file to your new bike. But realize as stated above that you're just accelerating a process that the brake pads, and road grit will eventually do over time and it's not that scary.

Use a fine toothed file, and go lightly at first. You'll be fine.
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Old 10-21-11, 07:20 AM
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File it. A good mill file is not expensive and is flat. Anything else such as a Dremel or sandpaper will follow the bumps and not leave an even and flat finish.
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Old 10-21-11, 10:55 AM
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Originally Posted by mmmdonuts
Anything else such as a Dremel or sandpaper will follow the bumps and not leave an even and flat finish.
Not if you know how to use it
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Old 10-21-11, 05:56 PM
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Originally Posted by Jlomb436
Well, this is ym firts bike. I guess my question would be, is this terribly common?
Yes, it's very common on non-welded rim joints.
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Old 10-21-11, 11:00 PM
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Originally Posted by Jlomb436
My bike shop happens to be an hour away, that's the unfortunate part. NOt really sure if thats worth the trip. Does no one else file them down except Psimet2001?
I have filed down a couple of sets that were the cheap stock wheels on the bike. Havent ever had this problem on nicer wheels though.
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Old 10-23-11, 12:29 AM
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Gotvha. Thanks folks, I'll probably file it down as it can be annoting. I'll just be extra careful.
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