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Jagged rim edge - Is this wheel done for?

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Jagged rim edge - Is this wheel done for?

Old 05-03-11, 01:26 PM
Oregon Southpaw
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Jagged rim edge - Is this wheel done for?

Hey guys.

Had a horrible morning; this new Specialized Mondo S-works tire I picked up on the cheap decided to detach from its sidewall (less than 20 miles on it) on a 30mph descent. The tube popping was like a shotgun blast, I had only an instant to try to slow the bike down. Unfortunately I could not and did a few rolls, smacking my head (thank you helmet) and various other body parts.

I'm fine other than some road rash and soreness, and my bike appears to be pretty much fine. The main damage was the front wheel - when the tire blew the bare rim was rubbing on pavement. Its now jagged as all get out on a few spots.

Is this thing done for? It would obviously pop a tube in an instant. Can I sand this down to usable again?
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Old 05-03-11, 01:50 PM
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I wouldn't recommend it, especially if it's an alloy rim (it probably is) because aluminium very rapidly develops larger and smaller (hence barely visible) cracks that might get back to you in a big way. I just hope the rim is nothing special glad to hear you came out of the fall fine!
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Old 05-03-11, 02:20 PM
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Ouch... A fear of probably everybody who's ever plunged down a hill at 30+ mph. Glad YOU are okay. Sounds like the damage to the bike is minimal. Ditch the rim, save the hub.

Just another reason I ride the TUFO brand tubular/clinchers. It's basically a tubular tire with a special bead that seats on a clincher rim. No tube, no rim strip and they stay in the rim upon loss of pressure. I hit a broken beer bottle just right at 20+ mph and lost all pressure in less than a second. No loss of control whatsoever, although it was the rear tire and I was not descending.

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Old 05-03-11, 02:23 PM
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First - congratulations on surviving a front blowout at speed without broken bones! I survived a similiar front blowout a few years ago and was reluctant to throw out the practically new Helium rim, so I sanded and smoothed the nicks. The rim has remained trouble-free for several years now. On the other hand, my wife and I had a front blowout on our tandem at about 35 mph, and not wanting to take any risk at all, I tossed the rim (and went to wired-on tires).
good luck, whatever you decide!
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Old 05-03-11, 02:44 PM
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Chances are I'd get some emery paper to knock down the rough stuff and ride that rim again.
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Old 05-03-11, 04:07 PM
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If you can sand it down to smooth without taking more than a few thousandths you should be OK. Hard to tell from your description.
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Old 05-03-11, 05:42 PM
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Exactly! I have smoothed out my share of rims but there are limits. Good clear pictures would help others offer advice.
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