I think Steve is inventing a new profession, that of riding a bike 200 miles a day. Unlike most other professions, though, he's doing it without any rest days and, it seems, on minimal pay. I hope it works out for him.
I thought about that, but decided on 'profession', which can, of course, be vocational. People do so many different things, why should there not be someone in our society who just rides 200 miles a day as his/her work?
I think Steve is inventing a new profession, that of riding a bike 200 miles a day. Unlike most other professions, though, he's doing it without any rest days and, it seems, on minimal pay. I hope it works out for him.