Summit Mountain Challenge
2026-08-15 09:00 - 13:00 (America/Denver) | Breckenridge, CO, Breckenridge, Colorado
The Summit Mountain Challenge Mountain Bike Series was acquired from the legendary Jeff Wescott (Westy) of Maverick Sports Promotions in 2021. Breckenridge Recreation continues to aspire to Westy’s goal: to create community through fun, affordable, well-organized athletic events. Racers must participate in 5 of 6 of the same courses (long, short, kids) to be eligible for the series overall winner.

Frisco Round Up 5/27
Tour De French Gulch 6/10
Peaks Trail Time Trial 6/24
Aspen Attack 7/22
Swan River Rampage 8/5
Summit Classic 8/15

PLEASE NOTE: In the event of inclement weather or unforeseen trail conditions, the race director reserves the right to delay, cancel or reschedule the race. There are no refunds in the event of a race cancellation or change.
Register For The Series Here
View Event Website

Evergreen Youth Gritty Grind Series
2026-08-18 17:00 - 19:00 | Wulf Rec Center, 5300 S. Olive Road, Evergreen, CO, 80439, United States
Want to try some competitive bike races this summer?
Want to WIN some races this summer?!
Join EPRD for our Youth Gritty Grind MTB Race Series!
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Races are for all youth 2 – 14 years old – from Strider bikes and up!
Races will take place Tuesdays (7/21, 8/18, 9/15) at 5:00pm on the MTB Skills course behind the Wulf Rec Center.
Races will be in a cyclocross format – timed, plus one lap.
Racers will earn points based on finishing position.
Points will accrue across the series and after 3rd and final race, rider with the most points wins.
1st, 2nd, and 3rd place winners for each category – spirit awards too, wear your best outfit!!
Categories –
– Boys and Girls
– Ages 2-5 (Striders only)
– Ages 6-8, 9-11, 12-14 (Pedal bikes, no restriction on size)
Race Parameters –
– 2-5 – one lap
– 6-8 – 15 mins, plus one lap
– 9-11 – 25 mins, plus one lap
– 12-14 – 35 mins, plus one lap
Courses may include tarmac, gravel, hardpack, loose soil and wooden features.
**** Riders must wear helmets at all times while riding. ****
**** Gloves, eye protection and other protective equipment is highly recommended. ****
**** Bikes should be mechanically sound with working brakes. ****
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**** See link below for registration!
**** You may register for each race individually, or for the series at a discounted rate ****
**** Registration fees increase $5 for day of registrations. Save yourself a fiver and sign up ahead of time!! ****

TNT Tuesday Night Thunder Race Series
2026-08-18 17:30 - 20:00, 2026-08-25 17:30 - 20:00, 2026-09-01 17:30 - 20:00, 2026-09-08 17:30 - 20:00 | Louisville, CO
Weeknight Criterium Bike Racing. Join us every Tuesday starting in June for some fast paced fun! Races will be self categorized and unsanctioned, keeping racing affordable and fun for everyone!

THE COURSE
The 0.6 mile TNT course is perfect for beginners and features three wide 90 degree turns followed by a long and gradual sweeping uphill turn that leads into the start/finish line.

Wednesday Morning Velo
2026-08-19 06:30 - 08:00, 2026-08-26 06:30 - 08:00, 2026-09-02 06:30 - 08:00 | Boulder, CO
Wednesday Morning Velo is Boulder’s premiere networking group ride.
Every Wednesday starting May 13, at 6:30 am.

Rise n Ride Commuter Group Bicycle Rides
2026-08-19 07:30 - 09:00, 2026-08-26 07:30 - 09:00, 2026-09-02 07:30 - 09:00 | McCaslin Park n Ride, Superior, CO, United States
Join Community Cycles for Rise n’ Ride, a free weekly group bike ride designed to help people build confidence biking for transportation. Whether you’re new to commuting by bike or looking for a supportive group to ride with, everyone is welcome. The ride meets every Wednesday morning at the US 36/McCaslin Park-n-Ride (North Side) at 7:20am and follows a comfortable pace with experienced ride leaders. Learn more about bike commuting, connect with fellow riders, and discover how biking can become part of your daily routine.

Maroon Bells Time Trial
2026-08-19 08:00 - 17:00 | Aspen, CO, Aspen, Colorado
Important Race Information

Online race entries are required for time trail races for ALL RACERS (including members and juniors). All racers must enter this race by 8:00 PM the night before the race. Scroll down for race entry information.
Start lists will be posted on this page by 10:00 PM the night before the race. Racers will be grouped by category and start times randomly assigned within each group. Special start time requests will not be granted – please don’t ask.
Note: Do not ride past the ranger station during your warm-up (the Forest Service may count you as a racer and we may exceed our race permit cap). Please turn around 200 yards before the ranger station during your warmup.
Please arrive at the start queue at least 2 minutes prior to your start time.
We will not have a bike holder at the start line. All racers must start from a full stop with one foot on the ground.
Drafting is not allowed in time trial races and will result in a time penalty.
DO NOT BIKE PAST THE FINISH TO BUS TURN AROUND. DOING SO WILL JEOPARDIZE OUR PERMITS!

Gold Rush Criterium Omnium
2026-08-19 08:00 - 2026-08-23 17:00
5 CRITS. 5 DAYS. 5 CHANCES TO WIN.

⛏️ $20,000 Total Prize Purse with Equal Payouts for men & women
⛏️ $500 Prize Purse for Pro 1/2/3 mens Omnium winner (paid 5 deep)
⛏️ $500 Prize Purse for Pro 1/2/3 womens Omnium winner (paid 5 deep)
⛏️ Merchandise Prize Purse for Masters Men & Women Omnium winners (paid 3 deep)
⛏️ All Crits within 1.5 hrs drive from the Denver metro area
⛏️ USA Cycling sanctioned and officiated race series

Colorado Springs Bike Party
2026-08-20 19:00 - 21:00 | Colorado Springs, CO
A casual group ride around Colorado Springs. Route is relatively flat, ~6 miles. No drop, easy pace with a few regroup spots along the ride.
We are here to promote visibility, inclusivity, and creativity in the cycling community. Everyone who welcomes everyone is welcome to join.
Bring your friends, bring your wheels, and bring the good vibes.
We meet at Cocktails After Dusk, downtown COS, 8 E. Bijou St., 7 pm Ride rolls out at 7:30 pm

Tour de Steamboat
2026-08-22 | Steamboat Springs, CO, Steamboat Springs, CO
For over two decades, this ride has brought cyclists from all corners of Colorado and beyond together to ride great roads, connect through a shared passion for cycling, and support local nonprofits across the Yampa Valley. Your participation helps raise funds for organizations making a real impact in our community.
A Ride for Everyone
Whether you’re riding with family, chasing a new challenge, or showing up for the experience, there’s a route built for you:

25 Mile Family Fun Ride – perfect for all ages and first-timers
Gravel Routes – including the new 112 Mile Lynx Pass Assault for those ready to push limits
Road Rides – two scenic routes across rolling roads, open ranchlands, and wide Routt County views

Find support along the way with fully stocked aid stations and smiling volunteers – some who have been filling bottles and cutting oranges for riders for over 20 years.

Winter Park Classics XC MTB Race Series - Tipperary Classic
2026-08-22 | Winter Park, CO, Winter Park, CO, United States
The Finale to the season! This is the race that started it all over 39 years ago, a true Colorado Classic! The course starts in the Fraser Valley and takes various trails to the finish at the base of Winter Park Resort. It stretches 25 miles and climbs over 4,000 feet. Riders who take on this race gain bragging rights for stepping up to the ultimate challenge and can boast they rule the Rockies.
Thirty-nine years ago, Winter Park hosted the iconic, inaugural mountain bike race for Colorado. The Winter Park Classics consists of the four races that capture our most popular routes from the classic courses that have been in use since the early days of the Winter Park Mountain Bike Series to reimagined classics, there is something for everyone.
From junior riders up to professional racers, we have a category that suits everyone – even if it’s your first race! We pride ourselves on offering a welcoming, fun race series for anyone who wants to get out and ride. For the professional rider, we offer a competitive professional rider purse for the top three men and top three women in each category. The Winter Park race series has included such legends as John Tomac, Ned Overend, Tinker Juarez, Juli Furtado, and David Wiens as well as the next generation of legends: Madigan Munro (Trek Factory Racing), Riley Amos (Trek Factory Racing), and Bjorn Riley (Trek Future Racing).

Lake City Alpine 50 Mountain Bike Race
2026-08-22 08:00 - 17:00 | Lake City, CO, Lake City, CO
The Highest Elevation One-Day Mountain Bike Race in the United States. The course hits 12,940 feet of alpine goodness.
The Lake City Alpine 50 is an epic, 50-mile, alpine endurance bike race with 6,000+ feet of climbing.
The course heads out from downtown Lake City, Colorado onto Highway 149 towards Lake San Cristobal. Lake City’s namesake was formed by a rare natural earthflow called the Slumgullion Slide, which blocked the Lake Fork of the Gunnison River, creating the second-largest natural lake in Colorado and one of the most beautiful lakes in the entire state of Colorado.

Royal Gorge Gravel
2026-08-23 | Canon City, CO, Canon City, CO
Royal Gorge Gravel is a fully supported gravel cycling event set against one of Colorado’s most dramatic landscapes. Towering canyon walls. Fast, open gravel. Technical punchy climbs. Big skies. Four distances: 15-mile, 30-mile, 50-mile, and 100-mile.
For years, The Crippler built a reputation for honest gravel and unforgettable routes. Royal Gorge Gravel carries that legacy forward—elevated, expanded, and reimagined for the future.
This isn’t just a race. It’s a destination weekend.
Built by riders. Designed for challenge. Delivered with intention.

Rumble at the Ranch 6 Hour MTB Relay
2026-08-23 07:30 - 13:30 | Highlands Ranch, CO, Highlands Ranch, United States
Rumble at the Ranch is a 6-hour mountain bike relay for teams of two or three riders as well as solo racers. The race takes place on the amazing Highlands Ranch Backcountry singletrack and double-track trail system. Teams will see how many laps of the 7.6-mile loop they can complete in 6 hours.

Gold Rush Criterium Omnium - Longmont
2026-08-23 08:00 - 17:00 | Longmont, CO
Five Crits. Five Days. Five Chances.
Introducing the inaugural Gold Rush Omnium — five criteriums in one week across Colorado, all within 90 minutes of Denver. With a $20,000 total prize purse and equal prize money for men and women, this is your chance to race hard and win big.
Host cities include Louisville, Golden, Longmont, and Littleton, with discounted hotel rates for out-of-town racers.
Race. Win. Repeat.

Adult Learn to Ride - Arvada
2026-08-27 17:30 - 19:30
You Can Do It!
Have you always wanted to ride a bike or been struggling to learn? Our effective gliding technique has most students riding within two hours!
REGISTER HERE
Lesson Details

Bikes and helmets to borrow, or bring your own. If you bring a bike, depending on the size and style we may suggest you borrow one of ours for the class.
Fun, safe and friendly environment, with students of 15 years or older.
Two-hour lessons.
Small class size, maximum of 8 students with at least two instructors.
If students would like to return for more practice, return learners can join a second class for no additional fee. Email us afterwards to schedule that second class.

Location and Time
Class is held at Arvada’s Bike Training Course located at Yarrow and 51st Ave. Class runs for two hours.
We suggest you park on the west side of the Costco lot (5195 Wadsworth Blvd) and walk west across Yarrow to Arvada’s Bike Training Course. If you bring a bike, please be careful as there are many goathead weeds that can puncture tires. We promise the short trek to this fantastic facility is worth it!

Additional Details
The lesson will be held rain or shine, so please be sure to dress for the weather. We suggest wearing comfortable, active clothing with layers and close-toed shoes. Please bring your own water and sunscreen. Unfortunately, there are no restrooms on site.
Don’t hesitate to reach out if you have any questions between now and class time. Please contact our Education Manager Benedict Wright at benedict@bicyclecolorado.org or 720-504-3871.
We’re looking forward to getting you riding on two wheels very soon!
Refund Policy
Please contact us at least 48 hours prior to the cancelled lesson in order for us to refund your full payment. If a cancellation is made within 48 hours of the lesson, we will reimburse half the cost and rescheduling will require an additional tuition payment. We hate to leave any spots empty as our lessons fill up and we need enough time to find another student to take your place. Thanks for your understanding!

Colorado High School Cycling League - Race #1 Frisco & Leadville
2026-08-29 - 2026-08-30 | Frisco, CO, Frisco, United States
The Colorado League fall race series consists of 4 regional races and a state championship. Mountain biking is a recognized club by many high school administrations. We provide student-athletes with a unique opportunity not found in many traditional school sports. Both individual achievement and teamwork are recognized.
Teams range from 5 to 100+ riders and foster an inclusive culture for participation. We provide high school student-athletes a festive, family-friendly atmosphere that focuses on respectful competition. Teams and individuals are encouraged to set and accomplish competitive goals and to achieve their personal best.
Professional race promotion, timing, course preparation, and risk management assure participants and spectators an exceptional experience where rule #1 is fun, whether a novice or world-class competitor!

Trestle Gravity Series - Super Downhill
2026-09-04 | Winter Park, CO, Winter Park, CO, United States
Super Downhill (Super-D) is the perfect mix of downhill and cross-country racing packaged together into one fun 6-12 minute run with a mix of downhill and flat or minor uphill sections. This event will take place in the late afternoon/evening.

Trestle Gravity Series - Downhill 2
2026-09-05 | Winter Park, CO, Winter Park, CO, United States
Downhill is a race that takes place on steep, rough terrain that often feature jumps, drops, rock gardens and other obstacles. This is also a timed event and one of the spectator favorites. Longer travel bikes are recommended.

Mad Cross
2026-09-05 | Peaceful Valley Boy Scout Ranch, 22799 Elbert Rd, Elbert, 80106, United States
New this year at Mad Gravel, they’re introducing Mad Cross for the first weekend cyclocross race on the Colorado calendar. Want to challenge yourself on a challenging course winding around the events area at the Ranch? This will be it, and a great prep for the Mad Gravel Hemi on Sunday. They will run A, B, C categories for men and women as well as Junior categories. The last race of the day will be a 60-minute team relay. With an option to create 2 or 4 person teams, all racers get to experience the fun of CX racing.
View Event Website

Mad Gravel
2026-09-06 | Peaceful Valley Boy Scout Ranch, 22799 Elbert Rd, Elbert, 80106, United States
Three unique course options are sure to bring you epic roads, punchy climbs, quick descents, and wide open spaces, and will take you back to remote and beautiful country in and around Elbert County. Starting from Peaceful Valley Boy Scout Ranch south of Kiowa, Colorado, riders will be challenged for sure, but still enjoy the amazing views and high peaks of the Colorado Front Range.

View Event Website

Trestle Gravity Series - Air Downhill 2
2026-09-06 | Winter Park, CO, Winter Park, CO, United States
This is a timed event and one of the most attended races. If you’re wanting fast, flow and fun, Air Downhill is where it’s at.

Battle of the Grommets September
2026-09-07 | Winter Park, CO, Winter Park, CO, United States
Battle of the Grommets™ Junior Gravity Races are a great introduction to downhill / gravity mountain bike racing for those age 15 and under! Modeled after the long-standing winter Battle of the Grommets™ Slopestyle competitions for skiers and snowboarders, we’re proud to offer a summer version of this popular, grass-roots competition for young riders!
The course flows smoothly with light bumps. All levels are welcome.

Couch to Cross
2026-09-09 | Jefferson County Fairgrounds, 15200 West 6th Avenue, Golden, CO, 80401, United States
In an effort to keep with the tradition of Fall weeknight CX racing, we are working with JeffCo Fairgrounds to bring that same vibe. Come race Couch to Cross on September 3. You will be treated to an amazing race scene, exciting atmosphere, professional timing, challenging terrain, and a volunteer group that is second to none.

View Event Website
