Quote:
Originally Posted by
irishguyonabike
The temperature was low 30's so it was a hot day, and sustained motorway running at high speed would have caused the chain to be a lot warmer than usual too, and no doubt have expanded a bit more as well.
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Assuming the chain is about 1.5m long, you'd need a temperature rise of about 55 degC to make it 1mm longer.
Pedantry aside, I'm with Gulgo on this one. Not enough information to say that it was the lack of chain guide that caused the problem.
Glad you came out of it unscathed!