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130 mm hub in 135 mm dropouts

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130 mm hub in 135 mm dropouts

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Old 03-28-15, 09:33 PM
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You do not have a disc brake do you? If so I do not think most of this will work so well.
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Old 03-28-15, 10:40 PM
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Originally Posted by himespau
No, I know how much a millimeter is. I just have issues when people say 2.5 mm flex on each side is bad for aluminum, but 1.25 (for those 132.5 hubs is ok). Hell, 2.5 mm is only 1/10". Where's the cuttoff? That's what I was asking. Is any flex bad or is it only flex over a certain point? What is that point? That's what I don't know.
I'm not sure anyone could say with certainty. If the frame were a steel one, you could say with some certainty that it would be more than 10mm. With aluminum, it's more than 2mm but probably not as great as 10. You can't cold set an aluminum frame without heat treating it afterwards but you can flex it quite a bit before any bad stuff starts to happen.
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Old 03-29-15, 08:25 PM
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Yeah, that's all I was trying to get at. Cannondale seems to think 2mm is ok (and that might be within manufacturing tolerance with some hubs though I'd really hope not as those would probably be some pretty ****ty hubs - it is within tolerance of ERD of some rims I've seen) and they've got 30+ years experience on that, but we all think 5 mm is too much. I'm just wondering where that line is. I guess I'll just accept that it is what it is.
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