Have a shop check the bike over carefully - I bent a steel frame once.... it was coming down off of a curb at a fairly high speed (no it was not on purpose!). Everything seemed OK at first - no readily apparant damage, but a couple miles down the road the rear wheel tacoed, and about a week later, after chewing through my jockey wheels on the real derailleur, I took it into a shop only to discover that the frame was a bit bent! Since it was steel they could bend it back and everything was OK in the end.



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