Originally Posted by
Seattle Forrest
Indoor trainers bend time and space with their massive boringness. One minute of on-the-trainer time amounts to about an hour of normal time, sort of like moving at the speed of light. Rollers are just as bad. Honestly, riding in the rain is much less terrible.
++.
My doctor forbade riding outside for six weeks after removing a tibial nail and some screws in February, 2011. The trainer sucks less than loosing more fitness but is a lot worse than riding in snow (dress for skiing), riding in rain (depending on intensity you have rain jackets, shoe covers, rain pants, helmet covers), riding in sub-freezing weather (if it's not too cold to ski, it's not too cold to ride), and riding after midnight (get a nice LED head light that car drivers mistake for a motorcycle's and planet bike super flash rear blinker).
Without fans there's also a huge heat problem. I'm as wet indoors at a recovery pace as out doors around lactate threshold.