Circumstances dictated that the level of my shed is around 18" above ground level, so a ramp is required for getting bikes in and out.
10 years ago I had my Hinckley Bonnie and my T140 and at 46yrs old, no issues getting them in and out.
5 years ago it was the Hinckley and my 5Ta, a bit older, but a much lighter Meriden, so again, no issues
Now it's the Hinckley and my T160 and I'm now 56 yrs old, and whilst still reasonably fit, I struggle getting the Trident in and out, even dropped it one wet evening (granted I was rushing due to the rain)
I have told the wife when the kids move, I will be converting one of the rooms back into a garage....