You're a legend Ed, I pray to God that if I make 56 (highly unlikely) that I can do that sort of mileage. I've done 800km in one day with kids on the back on the F4, never again.Good point Donsy.
Should have said my F4 is 2007.
The 10+ are supposed to be ergonomically better.
What made the most difference for me was getting in better shape physically and staying toned.
I am 56 and as said in another post have done 1500+ miles in 4 days and felt fine.