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| A gravel road race that takes place on the open rolling hills of the Colorado Front Range. 150 miles, self-supported. |
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| An annual 7-day, fully-supported bicycle tour in the wide-open valleys and the majestic peaks of Colorado's Rocky Mountains. |
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| A 100-mile benefit bike ride for San Luis Valley Habitat for Humanity in Alamosa, Colorado. |
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| Bike MS is a two-day bicycling fundraiser for the National Multiple Sclerosis Society. The 150-mile, two-day ride begins and ends in Westminster, Colorado and overnights in Fort Collins. |
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| This Canon City event combines the Royal Gorge Century Ride with a unique beer tasting experience to make up one of the coolest events in Southern Colorado. |
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| An annual bicycle race starting in Idaho Springs, Colorado to the Summit of Mt. Evans. It is the longest-running hill climb in the USA! |
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| Dive deep into the mountains and carve the canyons, with all the challenge and reward you'd expect from a century ride out of Boulder, Colorado. 75 and 100-mile options. |
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| Colorado's premier off-road endurance race climbs 13,719 feet over its 100 miles and will remind you of what backcountry mountain biking is all about. |
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| This ride offers outstanding views of Colorado's highest mountain peaks while enjoying the sunshine of the Arkansas River Valley. 40, 50, 62, and 100 mile options. |
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| Ride the beautiful back roads around Boulder, Colorado on 14, 35, 50, 70, and 100 mile routes. |
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| Cycle CASA is an annual mountain bike ride in Colorado Springs, Colorado, with lots of climbing and spectacular scenery. 20 and 43.7 mile route options. |
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| Enjoy a ride in the mountains near Frisco, Colorado, and help complete the bike trail around Lake Dillon! 21, 45, 60, and 100-mile options. |
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| The CoCo Century is a remarkably flat road bike route through various rural communities in Southeast Colorado, starting and ending in Ordway. |
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| An annual two-day educational and advocacy conference aimed at improving bicycling in Colorado. Held each February in Denver. |
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| An annual tour through the majestic Rocky Mountains. Begins and ends in Edwards and covers 439 spectacular alpine miles. |
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| A one-day bicycle ride that takes place in Eagle County, Colorado, with 42, 68, and 100 mile route options. |
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| The Community Classic Bike Tour is an annual bicycle ride in Loveland, Colorado, with 10, 30, 37, and 62-mile route options. |
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| Enjoy breathtaking scenery, gorgeous roads and three challenging climbs on one of Colorado's classic alpine road rides. |
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| The Courage Classic is an annual three-day, 157-mile bicycle tour that begins and ends in Leadville, Colorado and raises funds for the Children's Hospital in Aurora. |
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| A challenging 3-day charity tour over 5 mountain passes covering some of the most beautiful scenery in South Western Colorado. |
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| This Denver, Colorado event is billed as the most challenging single-day Century ride in the United States, with over 12,000 feet of elevation gain. |
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| The Denver Century Ride offers a 22-mile family ride fun ride, an exhilarating 62-mile metric century, and a challenging 100-mile century, each starting and ending at Invesco Field in Denver, Colorado. |
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| Come out and enjoy everything about being on two wheels at Bear Creek Lake Park in Lakewood, Colorado with the Battle the Bear XC Challenge and the Front Range 50 Endurance Race. |
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| This ride offers spectacular fall views of the scenic San Juan Basin, with 37, 60, and 100 mile options. |
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| The Fruita Fat Tire Festival kicks off the mountain bike season in the beautiful red rock country near Fruita, Colorado. |
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| An annual community cycling event held in Longmont, Colorado. Come celebrate our community of cycling with Bikes, Beers, and Blues! |
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| An annual dirt road ride out of Colorado Springs, Colorado. About 100 miles non-stop, self-supported, with approximately 7,000 feet of climbing. |
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| A gran fondo with 20, 60, and 90-mile route options. Part of the Gran Fondo National Championship Series, which offers some of the longest timed sections and most challenging terrain anywhere. |
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| A heart-pounding, mid-season ciclosportivo that takes cyclists over scenic byways and mountain passes of the high country around Vail, Colorado. |
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| An annual charity ride that takes place in Montrose, Colorado, with 35, 50, 75, and 112 mile route options. |
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| An annual event taking place in the beautiful Wet Mountains of southern Colorado. 24, 69, and 100 mile route options. |
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| A bike tour for the person who wants a challenge. The 8-day, 540-mile route includes all the highest mountain passes and roads in Colorado. |
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| Over 4,500 riders will enjoy Denver by moonlight as they cruise a 10-mile closed-course beginning and ending on the grounds of the Colorado State Capitol Building. |
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| One of the classic bicycle events in the West takes place every Memorial Day weekend in Durango, Colorado. |
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| An annual Colorado charity cycling event held in Morrison, Colorado, with 10K, 50K, 70K, and 100K route options. |
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| An annual mountain biking weekend that has been taking place in and around Lyons, Colorado since 2001. |
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| An annual non-competitive bicycling tour for riders of all abilities, that takes place in Montrose, Colorado and features both road and mountain rides. 40 and 100 mile road options. |
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| An annual cycling event in Teller County, Colorado with 19, 75, and 106 mile routes at over 8500 feet of altitude. |
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| A grueling and rewarding, one day, bicycle ride from Telluride, Colorado to Gateway Canyons, Colorado, with 70, 100, 103, and 133 mile route options. |
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| Pedal For Your Cause is a Longmont, Colorado cycling fundraiser to help bring the world of cycling to kids with disabilities. Riders choose between a 50, 25 and 10 mile routes. |
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| Pedal The Plains is a one-of-a-kind three-day cycling event celebrating the agricultural roots and frontier heritage of the Colorado Eastern Plains. |
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| Pedaling 4 Parkinson's is a 55-mile bike ride starting in Creekside Park in Glendale, Colorado, to benefit the Michael J. Fox Foundation for Parkinson's Disease research. |
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| Pedaling for St Pat's is an annual 50K bike ride that is part of the St.Patrick's Day celebration in Colorado Springs, Colorado. |
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| An annual recreational bicycle ride that takes place in the scenic foothills of Larimer County, Colorado. 11, 35, 65, and 100-mile route options. |
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| A Colorado charity cycling event featuring a scenic and challenging century route through and around Front Range landmarks and mountain towns. |
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| A charity bike race/recreational ride that gives riders the opportunity to ride a stunningly scenic mountain route near Aspen, Colorado while it is free of motorized vehicles. |
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| An annual bicycle tour that takes 2000 cyclists on a 6-7 day ride on paved roads through Colorado's Rocky Mountains each June. |
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| An annual bicycle ride that takes place in Boulder, Colorado. It features three routes, including the only fully-supported double metric century bike tour in Colorado. |
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| Join 1500 of your new best friends and ride through Garden of the Gods and the streets of Colorado Springs, Colorado on this annual midnight bicycle ride. |
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| A challenging road bike ride along one of Colorado's most beautiful scenic highways, 102 miles from La Veta to Segundo and back. |
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| An annual gravel road bike ride with 20, 50, and 100 mile routes on this dirt road tour of Elbert County, Colorado. |
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| An annual ride that takes place during one of Aspen, Colorado's prime fall foliage weekends, and is an absolutely gorgeous ride, with 25 and 50-mile options. |
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| A non-competitive, fully-supported bike ride through some of northwest Colorado's most spectacular areas around Steamboat Springs, Colorado. 25, 40, and 110 mile routes. |
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| Tour de Vineyards is a great way to celebrate the start of fall, by joining in this 25-mile bicycle tour of Colorado's Wine Country, in and around Palisade, Colorado. |
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| The Tour of the Moon takes place at the Colorado National Monument in Grand Junction, Colorado, with 41-mile and metric century mileage options. |
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| Over 120 miles and more than 10,000 feet of elevation gain over three major mountain passes make this Evergreen, Colorado event only for the fittest cyclists. |
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| Created for women by women, Venus de Miles is Colorado's first women's-only bike ride, rolling from Prospect Park in Longmont, Colorado with 35 and 65-mile options. |
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| A fondo-style 20, 60 and 100 mile road event that starts and finishes in Salida, Colorado. |
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| A Gran Fondo style timed road ride from Gunnison to Crested Butte, circumscribing the West Elk mountains of Colorado, with 130-mile and 100-mile route options. |