Cold weather, dissimilar materials, and torque.

Questions about bike hire abroad and everything light bike related. No off-topic chat please

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by mattr

You mean the thermal contraction of the aluminum bolts in the aluminum hub?

The only dissimilar material would be the steel disc. Which, if anything, would shrink less, increasing the effective end load.

I suspect you just didn't do the bolts up properly. Unless you have hubs made from something other than aluminium of course!

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by stella-azzurra

Bottom line is you don't torque it right it will come loose.
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