1977 Trek TX900
I actually took apart the 700c wheels that were on the TX 900 I bought, Mavic Blue rims with Campy hi flange hubs, and used the hubs and some nos Super Champion 27in rims to build new wheels for the bike. Reason was simple aesthetics, bike looked better with 27in wheels. Only difference in ride, was in going from tubulars to clinchers, noticeable, but not gonna deal with gluing tires to rims. Gotta a good price for the rims from a fellow forum member.
Tim