Pulled Eyelet Tubular Rim
03-03-12, 01:56 PM
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Pulled Eyelet Tubular Rim
Hello,
I made a newb mistake and pulled an eyelet on an Ambrosio Montreal tubular rim. Is is possible to repair the eyelet or is the rim toast?
Thanks,
TNO
I made a newb mistake and pulled an eyelet on an Ambrosio Montreal tubular rim. Is is possible to repair the eyelet or is the rim toast?
Thanks,
TNO
03-03-12, 02:44 PM
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I have never heard of them being replaced, I think you now have a new stretching rim.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
03-03-12, 05:50 PM
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03-03-12, 08:59 PM
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How in the world did you do that?? Cant even figure it out how to do that by accident, and I been using tubulars for more than a while.
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03-03-12, 09:57 PM
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Alloy parts have one good bend in them before they shear like a fatigued paper clip. Steel is far more forgiving, but, as a rule of thumb, I'd avoid trying to repair rims if you can avoid it.
03-03-12, 10:53 PM
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Basically the rim toast since the process enlarged the hole to where there's no real repair.
That said, an emergency field repair can be made with a washer. It needs to be large enough to span the damaged hole and rest on good material. I've done these in the past, and they've all survived the trip (up to 1,000 miles or so, loaded touring). In one case the owner decided since it held up, he'd keep riding, and the wheel lasted quite a while until a car polished it off, so I can't tell you how long this field repair can last.
That said, an emergency field repair can be made with a washer. It needs to be large enough to span the damaged hole and rest on good material. I've done these in the past, and they've all survived the trip (up to 1,000 miles or so, loaded touring). In one case the owner decided since it held up, he'd keep riding, and the wheel lasted quite a while until a car polished it off, so I can't tell you how long this field repair can last.
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Last edited by FBinNY; 03-05-12 at 11:28 AM.
03-05-12, 07:34 AM
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03-05-12, 11:13 AM
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the ferrule is a grommet, but it sounds like builder ripped the aluminum of the rim, .
new rim , less coffee during the job.
new rim , less coffee during the job.
03-05-12, 11:34 AM
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On a 32h rim, there's rarely (if ever) a need to go beyond 110kpf on the right side rear. The real issue is that left side tension is typically 60-65% of right side tension, and can cause the builder to ratchet up both flanges to get decent tension on the left. IMO, it's important to resist this tension bidding war and keep the right side closer to ideal, compensating with lighter spokes on the left.
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Just because I'm tired of arguing, doesn't mean you're right.
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WARNING, I'm from New York. Thin skinned people should maintain safe distance.
03-06-12, 12:23 AM
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?? ok but how?? I mean never ever been able to even crack a rim because too much tension, and I love sapim spokes. Ambrosio montreal rims have been around for at least 20 years, I even have 1 moving around and built wheels with those rims zillions of years ago and never heard of those eyelets to fail.
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Well if your last name is banner, I can understand it
