A few nice Colorado Bikes images I found:
Image by Cathy andersen
Ironman held in Boulder, Co, August 3, 2014. Picture taken with about a mile or so to go on the bike portion. (around Folsom and Iris)
Bikes Parked along the Journey from Estes Park, Colorado to Virginia, 1977
Image by Mennonite Church USA Archives
Box 5, Folder 2, Slide R20. Out-Spokin’ Records, 1967-1983. IV-034. Mennonite Church USA Archives – Goshen. Goshen, Indiana.