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Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all.  To have an event posted here please follow this link:  Event Policy Submission & Guidelines

Ridge at 38 Criterium and Brewfest

Photos - SportifImages - Brent Murphy Photo Wheat Ridge   Home to an eclectic mix of businesses that serve the community and welcome visitors, we offer a taste of small town without the drive. Our district provides people with anRead More

USAC Talent ID Road Camp

School of Mines 1500 Illinois St, Golden, CO

School of Mines, Golden   The mission of USA Cycling's Regional Talent ID Camps is to Provide USA Cycling with Jr. Talent Evaluations while Offering Athletes a Pathway to Develop Their Cycling Ability. Our Talent ID Camps are the first stepRead More

Ibis Demo at Full Cycle

full cycle 1795 Pearl St, Boulder, CO

Boulder   The Ibis Demo will also be on a reservation basis only. Reservations will be allotted a certain time chunk in which your welcome to ride the bike where you please. To make your reservation please give us aRead More

BRAC Level 2 Junior Camp

Golden   Training Miles & Team Building Camps: Generally offered to adults and teams early in the season, this style of camp embraces higher volume, team building exercises, season planning, and full body fitness.  Duration, scope, food, lodging, and location are determined byRead More

Art by Bike Tours of Loveland

Mehaffey Park 3285 W 22nd St, Loveland, CO

Loveland   Hop on your bike and join fellow cyclists on a slow-paced ride to experience Loveland's world-class public art collection! This two-part event features two unique loop-route tours led by a professional guide with At Your Pace Freestyle CyclingRead More

Kona Bike Demo

full cycle 1795 Pearl St, Boulder, CO

Boulder   The Kona Demo will be on a reservation basis only. Reservations will be allotted a certain time chunk in which your welcome to ride the bike where you please. To make your reservation please give us a callRead More

Berry Creek Bash

Shaw Cancer Pavilion

Edwards   Event details and registration here   Full series includes the following events May 31st - Eagle Ranch Classic XC June 14 - Berry Creek Bash June 28 - Battle @ Bellyache  July12 - Lost Lake Loop (adults only)Read More

2017 Mountain Top Experience Ride

Florissant Grange Hall Florissant, CO

Saturday June 17, 2017 Florissant, Teller County, Co   The 6th Annual Mountain Top Experience Ride has open registration. Starting at $45 with a t-shirt and $40 for no t-shirt, increasing $5 each month until event day. Free lunch andRead More

Colorado Death Ride

Best Western - Durango 21382 US Hwy 160, Durango, CO

Date: Saturday, Jun 17, 2017 (Alternate date for inclement weather: Sunday, June 18, 2017) Pre-ride meeting: Friday, Jun 16, 2017, 6:00 pm Ride check-in/start: Saturday, Jun 17. Check-in at 1:30 am. Ride start at 2:00 am Host Hotel/Start and finishRead More

Denver Century Ride

Denver   The founders of the Coldwell Banker Denver Century Ride believe that cycling is not just a sport but a way of life. We want you to discover urban cycling in Denver within a fun & enjoyable experience. ThatRead More

2017 – Bailey HUNDO

Bailey colorado

Bailey   Two courses: 100 Mile HUNDO 50 Mile HUNDitO Over 60 miles of single-track in the Buffalo Creek trail system and surrounding area. The Advance Colorado Fund DBA.  The Bailey HUNDO is a charity organization with the mission ofRead More

Lee Likes Bikes Level 1 MTB Skills Clinic

Valmont Bike Park Boulder,

Valmont Bike Park, Boulder   Mountain biking is such a rad sport—and it’s about to get even radder. Do you know how it feels to rail a turn on skis or snowboard? Learn how to do that on your bike.Read More

$75

G’Knight Ride

Roosevelt Park 700 Longs Peak Ave, Longmont, CO

Longmont   The G'Knight Ride is more than just about a single evening now.  Come join us in activities through the week, celebrating cycling!  The G'Knight Ride itself is Saturday, June 17th from 3PM - 10PM, with an after partyRead More

Bicycle Tour of Colorado

Colorado's Original Loop Tour   Start and Finish in beautiful Pagosa Springs, Co   The Bicycle Tour of Colorado is an annual 7 day fully supported bicycle tour in the Colorado Rocky Mountains. The 2017 tour will be held JuneRead More

Guanella Pass Hill Climb

Georgetown Georgetown, CO

Georgetown   The Guanella Pass Hill Climb is one of the most scenic routes in all of Colorado.  Riders will leave historic downtown Georgetown and traverse 3,050 ft in just over 11 miles on freshly paved roads.  The course windsRead More

FIBArk Mtb Race

Salida   Join us for this great new addition to the FIBArk line-up!  Registration categories include Single Speed, Cat 1 (Expert/Semi Pro), Cat 2 (Sport), Cat 3 (Beginner) and Kids (ages 12 to 16). All races will take place onRead More

Mt Evans Ascent

Although the air will be noticeably thin at the starting line, Echo Lake's 10,600 feet of elevation is just the beginning. The climb totals nearly 4,000 vertical feet - much of it above treeline - as you make your wayRead More

Day in the Dirt

Panache Cycle Wear 2840 Wilderness Pl, Boulder, CO

Boulder   Hello Friends of Panache. Sunday June 18th at 10:00 AM, we will be hosting another Day in the Dirt ride. We will be rolling out from the office for the start, heading south and showing some of theRead More

Boulder Junior Cycling Fundraiser

Illegal Pete's 1124 13th St, Boulder, CO

Boulder Please join BJC and local band Potato Francis at Illegal Pete’s on The Hill in Boulder Tuesday, June 20th for the band’s One Year Anniversary show and Boulder Junior Cycling Fundraiser. BJC rider Jack Brown is a founding memberRead More

DRAFT: Colorado Meetup – Denver

Industry 3001 Brighton Blvd, Denver, CO

Denver   Join us for a fast-paced hour of ideas, entrepreneurs and bikes, capturing some of the exciting things happening for Draft: Colorado. 6:00 - 6:30 pm: Beer and banter 6:30 - 7:45 pm: Program + Speakers @DraftMeetup #DraftMeetup HaveRead More

Breck Bike Week

Breckenridge Ski Resort

Breckenridge   Kick off summer with time in the saddle. Breckenridge is packing the community’s favorite cycling activities – mountain and road demos, skills clinics, and guided tours – into a few days of fun. Say hello to summer andRead More

SMC: Gold Run Rush

breckenridge Breckenridge, CO

Summit County   The Summit Mountain Challenge Mtn Bike Series was inherited in 2001 by Maverick Sports Promotions. Jeff had been timing alpine ski races for Team Breckenridge since 1996, raced bikes for a couple of years, and was looking forRead More

Emerald Envy XC

Emerald Mountain, Steamboat Springs   Event details and registration here   Series Schedule June 7th - Marabou XC June 21st - Emerald Envy XC July 12th - Bike Town Challenge, Storm Peak HC July 26th - Howelsen Howler August 16thRead More

2017 Table Mountain Race Series

Colorado State Patrol Training Facility 15203 W 12th Ave, Golden, CO

Golden   Full details and registration information here  

Chainless World Championships

Kebler Pass

Crested Butte   Friday, June 23, is all about the Chainless. Only in Crested Butte would we come up with a gravity-fed race like this. Bigger bikes. Bigger costumes. More ridiculous antics. Do whatever it takes to get you hereRead More

Grinta Jr. Devo Camp

Steamboat Springs   Calling all young riders* who wish to develop cycling skills, strength, healthy habits, and confidence by spending 2 1/2 days of riding, learning skills and having fun. (*Juniors aged 13-18.  Parents and coaches are welcome to join).Read More

Colorado Bike MS

FRCC - Westminster 3645 W 112th Ave, Westminster, CO

Date(s): June 24-25, 2017 Start/Finish Location: Front Range Community College Westminster Fundraising Minimum: $400 Age Minimum: 12 Contact the event organizer Ready for the ride of a lifetime? Bike MS: Colorado powered locally by Anthem, presented locally by Point B,Read More

Alison Dunlap MTB Level II Skills Clinic

Monument Valley Park 170 W Cache La Poudre St, Colorado Springs, CO

Colorado Springs   Women's Clinic   The Level II clinics are for riders that are comfortable on singletrack and regularly ride mountain bikes off-road. A Level II rider likes technical trails but may not have the skills to feel comfortableRead More

Prestige Imports Snowmass Loop MTB Fondo

snowmass snowmass, CO

Snowmass   What makes the event unique?  It’s FREE!   Sponsored by Prestige Imports and Snowmass Tourism, in conjunction with Snowmass Demo Days (6/24-25) and Aspen Snowmass’ Passholder Week, 75 lucky riders will be able to test their skills in the newRead More

WP Epic Single Track: Super Loop

Winter Park Ski Area Winter Park, CO

Winter Park Epic Single Track Series Race 1: Saturday, June 10 - Granby Ranch XC Kick-Off Race 2: Saturday, June 24 - Super Loop Race 3: Saturday, July 8 - Race Rendezvous Race 4: Saturday, July 22 - Elk CreekRead More

Pedaling 4 Parkinson’s

Sweetwater Park 8300-1/2 Sweet Water Rd, Lone Tree, CA

Lone Tree   We’re pleased to offer three routes this year, to give everyone a chance to Join The Fight!  Choose your challenge, and get ready for June 24, 2017!  Register early, as prices will go up as we get closeRead More

Fat Tire 40

Yelenik Pavilion 603 7th Street, Crested Butte, CO

Crested Butte   The Fat Tire 40 is a serious mountain bike race. Forty miles and it’s almost all on singletrack. This isn’t one of those dirt road races masquerading as a mountain bike race. It’s the signature event ofRead More

4SOH

Ft. Collins   The Four Seasons of Horsetooth Mountain Bike Challenge is a grass-roots un-event with no entry fees and no real start times and is ridden on the two solstices and two equinoxes in Horsetooth Mountain Park and Lory State Park. ByRead More

2017 Mavic Haute Route Rockies

CO

The inaugural 2017 Mavic Haute Route Rockies will bring seven timed and ranked stages to Colorado June 24-30. In addition to start and finish venues of Boulder and Colorado Springs, the event will visit Winter Park, Avon, Snowmass Village andRead More

Art by Bike Tours of Loveland

Chilson Recreation Center 700 E 4th St, Loveland, CO

Loveland   Hop on your bike and join fellow cyclists on a slow-paced ride to experience Loveland's world-class public art collection! This two-part event features two unique loop-route tours led by a professional guide with At Your Pace Freestyle CyclingRead More

Lee Likes Bikes Level 1 MTB Skills Clinic

Valmont Bike Park Boulder,

Valmont Bike Park, Boulder   Mountain biking is such a rad sport—and it’s about to get even radder. Do you know how it feels to rail a turn on skis or snowboard? Learn how to do that on your bike.Read More

$75

Lee Likes Bikes Level 1.5 MTB Skills Clinic

Sunset East Trails Erie, CO

Sunset East Trails, Erie   Learn to flow down all sorts of trails — especially the sweet green, blue and black lines at Erie's Sunset East.   This is a Level 1.5 class: more advanced than a Level 1 butRead More

$99

Community Cycles Membership Party

Community Cycles 2805 Wilderness Place Suite 1000, Boulder, CO

Boulder   Join us for the Annual Membership Party and Silent Auction on Saturday, June 24 from 6 to 9pm. Beer, Wine, Food, Bike Games and more! Membership assists Community Cycles in Making Bicycling Better in Boulder!  Membership discount onRead More

Parker Mainstreet Criterium

Photos - Brent Murphy Photo   ​This June get ready for a fast and flowing criterium race with one of the best finish lines in the sport!  This course takes center stage for its wide open roads, amazing smooth asphalt, andRead More

SMC – Breck Mtn Enduro

Breckenridge Ski Resort

Breckenridge   Enduro is best described as a mostly downhill-oriented cross country race and is the hottest format in mountain bike racing right now! Breckenridge Ski Resort and Maverick Sports Promotions are pleased to collaborate and bring this event toRead More

USAC Talent ID MTB Camp

Colorado Springs   The mission of USA Cycling's Regional Talent ID Camps is to Provide USA Cycling with Jr. Talent Evaluations while Offering Athletes a Pathway to Develop Their Cycling Ability. Our Talent ID Camps are the first step for youngRead More

Colorado Bike to Work Day

Colorado   National Bike Month is in May and includes an ever-expanding diversity of events in communities nationwide — but the biggest day of the month is Bike to Work Day. Most of the country celebrates Bike to Work Day inRead More

Battle @ Bellyache

Boneyard Trailhead, Eagle   Event details and registration here   Full series includes the following events May 31st - Eagle Ranch Classic XC June 14 - Berry Creek Bash June 28 - Battle @ Bellyache  July12 - Lost Lake LoopRead More

Leadville Trail 100 MTB Camp

Leadville   Dramatically increase your chances of capturing that coveted LT100 MTB belt buckle by attending the 2017 Leadville Trail 100 MTB Training Camp. Camp participants will ride, dine and socialize with a host of experienced buckle-sporting guides, including six-timeRead More

Knobby Tread Dirt Prom

REI 1416 Platte St, Denver, CO

Denver   Corsage? Check. Limo? Check. Padded shorts and tuxedo t-shirt? Check. Dig out your best prom and bike attire and help us ring in our favorite dirt-filled season at the REI Knobby Tread Dirt Prom. Join us for aRead More

Boulder Omnium Stage Race

Boulder   Friday Eldora Hill Climb Saturday Hygiene TT Sunday Boulder Road Race ​ Three days of action packed bike racing in a new time based omnium race format, but with the ability to also pick and choose to race one orRead More