Greetings, I recently purchased a 1970's Centurion LeMans that I use for commuting to work. Both the roads I ride on and the way I ride are pretty jarring (potholes, hopping curbs, etc.), and I'm wondering if there are alterations I should consider for my bike to help it cope with this, or if it's a bad idea to ride this way on such a bike to begin with. I know steel frames seem to be often preferred by urban cyclists, but I'm not sure if there are particulars that I should be aware of or not.

Thanks.