FYI for Roam owners:
I recently discovered that the rear dropout spacing on my 2011 Roam-2 is 135mm. I wasn't aware of this and have been running road wheels for about 1,000 miles.
Needless to say, I'm going to be buying a set of 700C wheels with 135mm spacing and rim brakes if I can find some. Unfortunately, the original wheels have several spokes that are trashed due to a poorly adjusted rear derailleur limit screw.