I´´m 78-years old and still cycling the world. Yes, it gets harder and harder as you age. Just recently I cycled, with weight, from Noordwolde, NL, to Glasgow, Scotland, some 300 miles / 500 KM. This more difficult than usual, because Ihad basically, sat writing my book, FOLLOWING THE LIGHT, without cycling enough. Again, the older, the longer it takes to get your legs back!
F.A. Hutchison