Chilly, cloudless morning start (32°F) warmed up to near 45°F by the end. Gene R & Wally joined me on a truly mixed-surface ride with minimal wind. Traveled from KCGC on roads out to Black Sheep Golf Club, which turned into smooth gravel from the Club entrance out to IL 47. After crossing I-88, traversed Finley Road out to Harter, of which 50% was also smooth gravel. Rest stop at BP near Waubonsee CC, then took the Gilman Trail all the way down to FRT, and then headed back to start. Jamis felt like a tank with cross tires on pavement but was needed on limestone and gravel sections. Only bad spot was on VLG trail between turn off for Hannaford Woods FP and KeDeKa road, which was a limestone quagmire. Finished the day with a fine lunch at Del Barrio.