FYI, I have a secteur, and have a wheelset with Mavic A319 rims (25mm wide, wider than usual). Currently I have continental gatorskins in 700x28 on there, and I doubt I could fit fenders with this setup. If they did fit, it would be really close. I'm guessing a narrower rim - 19mm is standard/stock I believe - would have even more problems because the tire would be higher and narrower.