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Killed a wheel. Any thoughts?

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Killed a wheel. Any thoughts?

Old 08-30-12, 03:32 PM
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Killed a wheel. Any thoughts?

I stayed in town on Saturday (first time since Feb!) and rode my bike to the beach, where I enjoyed a long swim. I had a few errands to run along the way, a couple that meant locking the bike up, so I took my commuter.

After a stop I noticed my brake was rubbing on the rim, and that the wheel was severely out of true. This was half a mile from LBS, so I rode there and asked them to true it. The guy pointed out that the rim was toast; it looked like a spoke pulled the rim, which bulged and then cracked. They didn't have an appropriate wheel in stock for me, so they promised to order something strong, cheap, and heavy, which is fine for my commuting needs. They gave me a loaner wheel to use until mine comes in.

It was the rear wheel, and I can't remember whether it was the drive side or not. I bought the bike, used, a year ago, and it came with the wheels. The bike is a 2004 or 2005. I don't know any of its history, but I'd guess the wheels are about the same vintage. It was an older Neuvation wheel, probably a M28 or R28, I'm not sure.

Is this a common way for wheels to die? Did I abuse it, or is this just age and lots of use? What lessons can I take from this?
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Old 08-30-12, 03:37 PM
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he older r28 wbeels used a lighter weight rim for the rear made by jalco. Had ghe same issue. A high tension low spoke count wheel on an overly light rim. Fatigue failure at the spoke hole and the spoke pulls through.
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Old 08-30-12, 05:52 PM
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I've had a few rear rims crack like that. Mavic Open Pros were the worst, even with the eyelets. It's why I no longer use them and distrust Mavic products.
But I've also cracked a KinLin XR270, probably by exceeding the spoke tension recommendation in an attempt to get enough tension on the NDS spokes. It turned into a good excuse to get back into wheel building.
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Old 08-30-12, 06:12 PM
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you live & ride near Seattle... the grit & particulate on the roads around here is horrendous.
Your wheel lived a good life, given what I see at work I'd say you are in the upper 1/3rd of lifespan for that sort of wheel.
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Old 08-30-12, 10:34 PM
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the 2 wheels I broke had spokes break at the bend at the hub end.
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Old 08-31-12, 10:44 AM
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Thanks, everybody.

I was thinking this might be because I'm a little rougher on this bike than on my nice one, I've gone (as gently as possible) over some curbs and whatnot on it. Hearing that this has happened before with the same wheels, that it's common for the type of wheel (very high tensions spokes, and a light metal rim), and that the grit these go through in the rainy season is also to blame, means I didn't mess up and kill the wheel prematurely.

I sort of figured wheels typically died by popping a lot of spokes, or that one might punch through the rim. Pulling it until it broke seemed weird to me.
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Old 08-31-12, 11:06 AM
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Yeah, I've had spokes start to pull through and crack the rim before on my Neuvations. Low spoke count + high tension + large-ish (aka fat) rider = cracked rim.
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