Riding the Dirty Edge will make you realize why 18 Road is world-class biking. With expansive views of the beautiful Book Cliffs, you will ride through the endless gravel roads of the North Fruita Desert before attacking the back canyon section of the Edge Loop, hence the competition’s name. This mix of smooth gravel, sporty fun, and gorgeous vistas will make The Dirty Edge a Fruita classic and an unforgettable 50K bike race in Colorado.

Sunny and dry, springtime in Fruita is the perfect time to experience the desert on a bike. This challenging 50K race is just one of many races at the Adventure Fest at 18 Road and racers receive admission to all of the weekend events as well!


Finisher’s mementos will be given as racers cross the finish line. Placer’s awards will be awarded along with raffle prizes at approximately 11:30 am for both of the Sunday races. Both the men’s and women’s winners will receive comp entries to next year’s race.

Please join us the night before the Dirty Edge Gravel 50K for the racer party and mountain bike awards! There will be food, beer, games, and live music at 5:30 pm at Colorado Backcountry Biker in Fruita, CO. See old friends and make new ones! Family, friends, and crew are included, so bring everyone. The ceremony is sponsored by Upslope Brewing, so, there will be free beer and White Bison BBQ will provide delicious eats. The Troy Douglas Band will be supplying folk-rock tunes to go with it.

Adventure Fest is a weekend of celebrating everything we love about the outdoors and this includes our community. We hope to see you at the awards ceremonies!

Customized cowbell awards will be given to the top three male and female finishers of the Dirty Edge Gravel 50K in each of the following age groups/categories:

  • Under 20
  • 20-29
  • 30-39
  • 40-49
  • 50-59
  • 60+
  • Single Speed

All mountain bike racers will receive customized dog tag finisher awards as they cross the finish line. Awards and mementos will not be mailed after the event.

Key Event Details
Dirty Edge Gravel 50K

Sunday, May 7th, 2023

Start Times

9:00 am

Start Location

Trailhead off 18 Road

Finish Line

Same as Starting Location

Cut Off Times

11:00 am

Take Interstate 70 west to Fruita (exit 19). Turn north onto Cherry Street and take the first right onto Aspen Avenue. Go through the roundabout and continue on Aspen to Maple Street. Take a left on Maple Street and then travel north. The street will turn into 17.5 Road. Take a right on N.3 Road and then a left on 18 Road. Travel approximately 7 miles on 18 Road to the trailhead and look for the signs/markers for our 50K mountain bike race in Colorado.

Dirty Edge Gravel 50K
Early (until 1/1)


Standard (until 3/14)


Late (until 5/12)


Race Weekend


Entry fees for the Dirty Edge Gravel 50K include place winner awards, race mementos, aid station goodies, a finisher’s memento, post-race refreshments, and admission to all of the weekend events and activities. The entry fee is non-refundable and nontransferable.

See more information on our refund policy below.


Spots are limited for the Dirty Edge Gravel 50K race in Colorado. If you want to participate, reserve your spot today! The sooner you purchase your ticket, the cheaper it will be.

Dirty Edge Gravel 50K

The Dirty Edge Gravel 50K is entirely on non-technical gravel roads. With a fun loop leading into a beautiful out-and-back, you will have just enough rolling hills to keep things interesting and challenging. Racers will travel roughly 50K and experience 2700′ of climbing while enjoying an open desert with short steep climbs and descents, backed by stunning picturesque views of nearby buttes and mesas.

Throughout the course, racers will hit the 16 Road aid station twice at miles 5 and 13, and face a challenge up to the Sarlacc aid station at mile 20 for the out-and-back turnaround. No other gravel race gives you so much support, which makes the Dirty Edge Gravel race one of the best 50K gravel races in Colorado.

The north Fruita Desert is an epic place in the springtime and we’ll help you get the most out of your experience. Get ready for a fun weekend of riding and socializing!


5:00 pm-7:00 pm – Packet Pick-Up and Late Registration at Fruita Community Center


7:15 am-8:15 am – Race Day Registration and Packet Pick-Up at start/finish

8:30 am-4:00 pm – Sarlacc Attack 50K

10:15 am – Fitness Competition

5:30 pm – Adventure Fest party/awards ceremony


7:00 am-8:15 am – Race Day Registration and Packet Pick-Up at start/finish

8:30 am – Fruita Trail Half Start

9:00 am – The Dirty Edge Gravel Start

11:30 am – Half Marathon & The Dirty Edge Gravel Awards/Raffle – Finish Line

Course Records

Sarlacc Attack

Male: 1:48:46 Vaughn Janckila (2021)

Female: 1:49:34 Tracy Kovaleski (2021)

Is There Camping Available?

There are 58 individual campsites available. Each site has a fire ring with a grate, a picnic table, and parking for two to four vehicles. Campers must bring their own firewood. There is no electricity, shade shelter, or garbage pickup for the campsites. There are vault toilets within walking distance of the campsites. Dispersed camping is allowed near the start/finish area and any dispersed campers will have use of the event toilets.

The Super 8 in Fruita, CO is this year’s host hotel, so you can acquire discounted rates there. However, most racers will be camping at 18 Road for an easier start to the day for this mountain bike race in Colorado.

Are Dogs Allowed?

We love dogs! Well-behaved dogs on leashes are welcome at the Start/Finish and aid stations. Unfortunately, we cannot allow dogs on course with any racers.

What Supplies Are Offered at the Aid Stations?

At the aid stations, racers will receive Hammer gels, HEED by Hammer Nutrition, water, skittles, and potato chips. Aspirin, ibuprofen, and other NSAIDS will not be provided. And to reduce waste, cups will not be provided at the aid stations.

Radio contact will be available at all aid stations and each one will have the necessary medical materials to nurse any bumps, cuts, bruises, and/or blisters.

Three aid stations will be provided for the Dirty Edge Gravel 50K.

Can I Go Off Trail at any Point?

Racers must stay on the designated course at all times. Shortcutting will result in disqualification. If you go off course, you must return to the same point you exited in order to continue.

Do Racers Need to Wear Bibs?

Racers must display their race numbers at all times.

What Weather Should I Expect?

Weather in the Fruita Desert can vary. The averages for May are a low of 48 degrees and a high of 79 degrees Fahrenheit. While the weather is never a sure thing, you can typically expect highs of between 70-80 degrees with very little chance of rain in Fruita during this time of year.

What About Unforeseeable Circumstances?

In the case of unforeseeable circumstances due to weather or other extenuating circumstances that prevents the safe continuation of the race, race officials may end the race at any given time without a refund of unused portions. This rule will be implemented in the most extreme cases for the safety of the racers or officials.

I Lost Something at the Event! Is There a Lost & Found?

Items left at aid stations and lost & found items will be available at the awards ceremony immediately following the 50K bike race.

Can I Transfer or Cancel My Registration?

There will be no entry transfers. If you regrettably need to cancel your registration, please use UltraSignup. Cancellations will result in a credit that can be applied as the initial registration payment toward any Gemini Adventures event within one year’s time, minus a 15% fee. To cancel your registration, simply login in to your account, go to “Registration History,” select “Edit” for the Dirty Edge Gravel 50K, and select “Cancel Registration.”

What’s our Refund Policy?

  • 30 days or more prior to the event: 85% credit of registration fee (excluding UltraSignup fees).
  • Less than 30 days prior to the event: No refunds or credit given.

Credits may be applied to any future Gemini Adventures race and will be valid for 12 months.

Registered racers may also switch between distances. No refunds or credit will be given for dropping down in distance. If you want to step up your distance, the added current pricing of the longer distance will be charged (excluding UltraSignup fees).