When I decided to go back to Banff, Alberta for another try at Tour Divide, one of my first calls was to Kevin Harvey of Harvey Cycle Works. He has built a lot of randonneur bikes that include dynamo hubs, custom lighting and clearance for two-inch tires (or space for 650b x 42mm tires and fenders). We worked together on a gravel bike inspired by his rando bikes for NAHBS one year and it served as a test bed for the bike detailed here, even down to the paint.
I knew that I wanted a bike that provided a high level of compliance. Lightweight, small diameter tubing accomplished that. Harvey also included extra bottle mounts on the fork legs and underside of the down tube. Di2 and mechanical routing were both installed. The Rando Adventure is a super versatile bike. With slick tires, fenders and a road gearing it's a super comfortable bike for day-long rides. I can also outfit it for gravel events with Bruce Gordon Rock 'n Roads, or Surly Knards, or even Soma B-Line tires (what I used at Trans Iowa). If gnarlier terrain is ahead, 27.5 x 2" tires also fit.