I can see that problem, too. But since I live in a country and regions where cycling is not really a big sports, it's a bit easier to have a workaround. The problem is still that cycling involves a lot of athletes at once, so the permission things will be far more difficult. In comparison to my tennis story, I actually used a real tennis player as the opponent - once a WTA top 100 player - without ever showing her face, but asking permission of one person is of course far more easier than from a whole peloton.Interesting. I suppose a fictional literary work on cycling would be difficult, though. Because you probably won't be allowed to use real names of other cyclists, and then you have to create tons of fictitious characters which is necessary to emulate the scope of real cycling but annoying for the reader to have to grind through.