Go for it Kernowcyclist! I started cycling again at age 53. I'm almost 59 now and ride about 100 miles a week most of the time. When I started, it was gradual- a few miles more each ride or each week. I've since ridden about a dozen 100+ mile rides.

What part of England are you in? My daughter is a graduate student from a university in Chichester but actually lives in Cambridge with her boyfriend at present (because the libraries are better ) and we just came back from visiting them.