Trek 700 Tri Series frameset with sport touring geometry and Reynolds 531 tubes
As rebuilt last month to get on the road ASAP: Hunt aero wheelset, Ultegra / Dura Ace drivetrain, Nitto m151 bars and deluxe stem, Michelin 28mm Pro4 Endurance tires, Newbaum's bar tape, Berthoud Aravis saddle, Easton carbon seatpost, etc
Having since logged ~250 miles, I'm enjoying the whippy feel of 531c with semi slack angles and 42.5cm chainstays... lots of unforgiving tree root asphalt damage in and around Seattle to traverse
More than enough clearance in all areas that matter for 32mm GP5000s mounted to Hunt wheels with 19mm internal / 24mm external rim width (pictured below with 28mm Michelins that measure 31mm wide), though regardless of tire choice probably worth noting that the seat stay bridge is high enough that many modern calipers won't reach the brake track. Shimano R650s to the rescue...
Flickr album with more images
Specs in the
1986 Trek catalog