Treks came in 1.5in increments, measured ctt. When first posted I noted it looked like a 22.5 vs 21 or 24. In a ctc measurement may be close to 56. I am sure you can resell it if necessary for good price, assume the rear is newer rim, sun? I had to replace the araya stock rim on my fuso this spring after cracking it, used a sun cr build back on the tricolor hub and it is bombproof though a bit heavy. I prefer rear wheels that can take my weight even if a bit heavier.

But back to the bike, you can resell that no problem many people on here would buy it I am sure.