Originally Posted by
RonH
Welcome Peter.
Your 53/39 12-23 will do just fine once you get your legs and lungs back into shape for cycling.
I'm 66 (there are many others here older than me) and my main ride has a 53/39 and 11-23 setup and I haven't met a hill yet that I can climb. Been riding for 11 years.

Stop by the
50+ forum and say hello to the other old timers.
I had an idea that it's about time I replaced my chain anyway, and if doing that I may as well change the cassette too. I thought that if I went to a 13/28 combo for a while, it might help get my fitness back up whilst still getting me up the hills, and keeping my cadence up. Then when comfortably fitter I could change back? I don't want it to be that hard that I give it up!
Just a thought?