Iron Horse Classic — Three days of bicycling events in Durango, featuring a 50-mile bike tour, road race, criterium, and mountain bike race. The bike ride to Silverton caps at 2,500 cyclists; register early. Dates: May 26-28, 2017.
The Denver Post 2017 Ride the Rockies — Celebrating 32 years in 2017. Route announcement is scheduled for Feb. 4, 2017 (see website for registration details; lottery registration). Dates: June 10-17, 2017.
Great American West — Ride through red-rock country, the San Juan Range in Colorado and the “Loneliest Road in America” on this van-supported tour starting in San Francisco and ending in Pueblo, Colorado. Dates: June 10 – July 15, 2017.
The 2017 Bicycle Tour of Colorado — Now in its 2nd year, this ride covers 400-some miles of Colorado terrain. Check website for route in late November, 2016. Limited to 1,500 cyclists. Dates: June 18-24, 2017.
Colorado Rocky Mountain Bike Tour — For the 10th anniversary bike tour, the loop begins and ends in Idaho Spring, with overnights in Breckenridge, Edwards, Granby, Estes Park and Evergreen. The 438-mile route summits eight mountain passes, including Trail Ridge Road in Rocky Mountain National Park. (Registration caps at 500.) Dates: July 31 – Aug. 6, 2016.
Colorado Alpine Trails Relaxed — This fully supported bike tour from Silverthorne allows for a leisurely ride (32 miles a day average) through the Rockies going down to the Colorado River. Offered by the Adventure Cycling Association. Dates: Aug. 5-11, 2017.
Great Divide Colorado Alpine — A self-contained mountain bike tour starting in Steamboat Springs travelling through the Alpine section of the Great Divide Mountain Bike Route and finishing in Salida. Offered by the Adventure Cycling Association. Dates: Aug. 5-14, 2017. Or Aug. 19-28, 2017.
Pedal the Plains — A three-day loop bike ride that explores the flatness of eastern Colorado. Fifty to 70 miles per day, with a century option. Sponsored by the Denver Post, but certainly not to be confused with Ride the Rockies. with a century option one day. Dates: Sept. 16-18, 2016.
Wild Country Utah — A van-supported bike tour starting in Grand Junction totaling 130 miles over 8 days. See the Grand Staircase-Escalante National Monument and Capitol Reef National Park along the way. Dates: Sept. 29-Oct. 6, 2017
Utah San Rafael Swell — Mountain bike the San Rafael Reef with this van-supported Adventure Cycling Association tour. Starts and ends in Grand Junction. Dates: Oct. 8-15, 2017.
Also check out Bike the Byways — 25 scenic bicycle routes in Colorado for independent-minded bicyclists.