All these 60 years young fellars around , I am 67 in September and still ride at least 3 times a week with blokes young enough to be my grandson, I am still capable to ride 1000k plus days ,1170k home in one day from RDU 2014, turning 60 is not the thing that stops you doing what you want, its not wanting to do things at 60plus that stops some of us ,providing you have your health and a few bob
Then on your bike jimmy as the Scots say! as for downsizing bikes, forget that one