I ride for fitness and to be extremely car-lite.
I use a trek 7.3 fx for fitness rides, in Mississauga and Toronto. I have a 40km circuit in Mississauga which works well for me, I also have a 30km and a 15km depending on how much time I have. I've never done more than 50km solo, although I plan now to start travelling a lot more West of Mississauga into the country roads off Britannia and Derry. I do these maybe once every two weeks, when I'm physically and psychologically up for it, there's perfect weather and I have lots of time.