Hello all! I've got a Marin Muirwoods 29er. It is an "urban" bike with big wheels, street tires, and disc brakes. I recently took it in for a tune up and the LBS told me that the way my frame is built, there is no way to *safely add the side mount for my Pacific trailer. They said it's because my frame isn't flat. Has anyone else ran into this? If so, how did you deal? They told me that there might be a longer skewer, but I can't seem to find anything like that. Thanks in advance for any help!