A big hello from Devon, Gods country.
A new model D owner and looking to improve my overall fitness. Its unlikely I will ever be an Olympian

I used to cycle a lot back in the day, not up to any recognised standard but I had fun.
Unfortunately osteoarthritis has laid me up for the last couple of years, 3 failed attempts at knee surgery has left me in a pretty sorry state which I am hoping to improve.
I would be grateful for any advice which would help me in that endeavour.
Thanks in advance for any help/replies.