The rear is a Rolf Vector Comp that I bought from a guy that had never ridden on it (my originals wore through the sidewalls from all the rain/grit). He didn't have the front any longer, and evidently you can't get red from Trek anymore. After looking on eBay for awhile, I gave up and decided I could just build my own using a Velocity DeepV and the Rolf hub. A radial lace uses the same spoke length (and the LBS had plenty of the flat DT spokes used in the original Rolf setup) since the rim dimensions are nearly identical.

Unfortunately, the red color is slightly different between the two. . . but the front more closely matches the bike, so I may just build a new rear with a Velocity rim and maybe an American Classic hub.

Oh, and I now use Mavic Open Pros on Ultegra hubs during the winter to save the wear on my "pretty" wheels.