Adrenaline Rush: New Record In Longest Downhill Mountain Bike Race In The Tetons

The Colter Cup is not just the longest downhill mountain bike race in the Tetons, it’s an insane adrenaline rush that pushes the stamina of racers. An 18-year-old from Victor, Idaho, set a new record in Saturday’s race.

DM
David Madison

July 20, 20258 min read

Rider Brian Sweat from Driggs, Idaho, braces for 30 minutes of bone-rattling thrills.
Rider Brian Sweat from Driggs, Idaho, braces for 30 minutes of bone-rattling thrills. (David Madison, Cowboy State Daily)

ALTA — Ethan "The Cheetah" Mentzer crouched at the starting line, his specialized Stumpjumper gleaming in the morning sun atop Grand Targhee Resort.

The bike mechanic from Driggs, Idaho, has been on a roll lately. Just two weeks earlier, he'd won a "mullet race" where he powered through the all uphill first stage before his relay partner handled the downhill section. 

Mentzer was the business up front, and his buddy was the party in the back, with an all-downhill run to the finish line. 

On Saturday, Mentzer — whose cheetah pattern jersey matches his fender and gold rimmed sunglasses — was preparing for a mostly party and some business race to the bottom of Teton Canyon. The starting line sat at 10,000 feet and the finish line was 3,900 feet below.

What’s in between is a steep, rocky slope that pushes the limits of adrenaline.

"Any time I'm on the bike, it's an adrenaline rush for me," Ethan told Cowboy State Daily. "And then the race environment just adds a little bit more pressure."

Offering the longest vertical drop of any mountain bike race in the Tetons, the second annual Colter Cup downhill includes one section midway through where riders must ride uphill. Then the course descends into Teton Canyon near the village of Alta, passing through U.S. Forest Service land where a local rancher still runs cows. 

Before the race, Mentzer felt buoyed by the confidence he’d gained with his recent mullet race win. Then he thought to himself about another competitor also on the rise in Teton riding circles.

"One of my coworkers wins everything," Mentzer said matter-of-factly before the race. "Caleb. He's, like, 18 and just ridiculously fast at everything."

  • With a time of 27:39, Caleb Bender from Victor, Idaho, beat the record time by nearly three minutes.
    With a time of 27:39, Caleb Bender from Victor, Idaho, beat the record time by nearly three minutes. (David Madison, Cowboy State Daily)
  • Race creator Tony Ferlisi at the starting line at 10,000 feet.
    Race creator Tony Ferlisi at the starting line at 10,000 feet. (David Madison, Cowboy State Daily)
  • Myles Nardi, a 13-year-old member of the Teton Pass Rats, represented his riding posse well, placing third in the under 15 category.
    Myles Nardi, a 13-year-old member of the Teton Pass Rats, represented his riding posse well, placing third in the under 15 category. (David Madison, Cowboy State Daily)
  • Young Bruce Cherry waits in the wings as his 10-year-old brother Cooper Cherry, right, from Idaho Falls placed 11th in the under 15 category.
    Young Bruce Cherry waits in the wings as his 10-year-old brother Cooper Cherry, right, from Idaho Falls placed 11th in the under 15 category. (David Madison, Cowboy State Daily)

Armor Up

That would be Caleb Bender, the quietly confident local who'd been eyeing this course all season.

At 18, the homeschooled Teton Valley High grad was the local favorite who threatened to beat the 30 minutes and 33 seconds posted by last year’s winner.

A rainstorm moved in the night before Saturday’s race, tamping down the loose gravel and letting riders really speed through the turns. 

In addition to Mentzer’s cheetah flair, the starting line at the top of Fred’s Mountain was crowded by a multigenerational cross-section of boisterous riders from Wyoming, Idaho and Montana. 

There were the pink and black stripes of a mountain bike crew called the Teton Pass Rats and there was a rider from Bozeman who upgraded from jean shorts last year to a fully armored suit this year. 

They were all gathered for a race named in honor of a mountain man who was among the first white settlers to draw attention to the wonders of Yellowstone country — or “Mellowstone,” as they call it at Grand Targhee Resort.

Colter is also perhaps the best-known nude streaker of Old West lore.

These riders, decked in varying amounts of riding armor, were there to unabashedly go as fast as possible.

Mustard And Mind Games

The go-to pre-race ritual for 16-year-old Tanner Fox is downing two tablespoons of French’s yellow mustard.

"It helps with cramps a lot," Fox explained. "Especially in a race like this, if you're cramping up."

A friend of Fox’s prefers pickle juice, which he said also wards off cramps on long courses like the one created for the Colter Cup. 

The man responsible for it all is Tony Ferlisi, Grand Targhee's race director and the creative force behind the event.

Standing before the assembled riders, Ferlisi painted the picture of what they'd just signed up for: A 30-minute-plus odyssey dropping nearly 4,000 vertical feet in the shadow of the Grand Teton, making it the longest downhill race in the Tetons.

"This is an amazing course," he told the group during his pre-race briefing. "Starts from the top of Fred's. It ends all the way down in Teton Canyon at the Mill Creek trailhead."

The payoff is a race that puts a two-wheeled modern spin on the spirit of race namesake John Colter.

"John Colter has a history, a big history here in Teton Valley," Ferlisi said. "The history books say that Colter did some trapping up in Teton Canyon back in 1808. So, we kind of linked that together."

Colter’s infamous run to safety happened in Montana when a group of Blackfeet warriors stripped Colter naked and gave him a headstart running before they planned to kill him.

Somehow, he survived. 

To stubbornly survive is the goal of racers now drawn to the Colter Cup.

They are drawn by the unique opportunity to ride through a stretch of forest not normally open to mountain bike competitions. The riders are also warned about the possibility of a cow collision. 

"There is a grazing permit," Ferlisi warned. "You could encounter cattle while you're on the trail. So, keep your heads up." 

The cows don’t follow the carefully maintained racecourse. They instead make their own paths straight down drainages, creating confusion for racers flying downhill at high speeds.

Like Colter's infamous sprint, this race tests who can move fastest down and across the mountain, enduring the rattle and hum of vibrating handlebars and squeaking brakes. 

"Our winner last year finished this race in 30 minutes and 33 seconds," Ferlisi announced to the racers. "So, it's a bit of time out there on the trail."

The Siblings

Brother and sister Bryce and Taylor Kovi represented the local everyday racers who don’t power-load mustard or wear full body armor. 

For Taylor, this was her first official downhill race, though she'd raced cross-country before. Bryce had convinced her to sign up just two days prior.

"I only live once," she said with a shrug.

"The upper section's pretty technical," Bryce noted, referring to a bumpy section called Sticks and Stones. “When it comes down to the lower section, that's where fitness is going to play a huge role with the two pretty sizable climbs."

As riders began their descent from 10,000 feet, the mountain reveals its character in waves.

First comes the technical rock gardens, where suspension systems and the riders’ hands and wrists struggle to absorb the vibration.

Then the course winds through the pedaling sections that separates the pure downhillers from the all-mountain riders.

Finally, there’s the homestretch downhill, where if the steep trail and high speeds aren’t enough, there are cows and the slippery organic land mines the cows leave behind on the trail.

  • Every downhill race bike and rider gets a lift.
    Every downhill race bike and rider gets a lift. (David Madison, Cowboy State Daily)
  • Bozeman, Montana, rider Marcus Mattox crosses the finish line … and he can’t feel his hands.
    Bozeman, Montana, rider Marcus Mattox crosses the finish line … and he can’t feel his hands. (David Madison, Cowboy State Daily)
  • Bozeman, Montana, rider Marcus Mattox crosses the finish line … and he can’t feel his hands.
    Bozeman, Montana, rider Marcus Mattox crosses the finish line … and he can’t feel his hands. (David Madison, Cowboy State Daily)
  • Evan Fox reveals the secret to his success — yellow mustard. He finished second in the 15 and older amateur category, while his high school pal from Idaho Falls Tanner Russell finished seventh.
    Evan Fox reveals the secret to his success — yellow mustard. He finished second in the 15 and older amateur category, while his high school pal from Idaho Falls Tanner Russell finished seventh. (David Madison, Cowboy State Daily)
  • Ethan “The Cheetah” Mentzer finished fifth in the top open-pro category.
    Ethan “The Cheetah” Mentzer finished fifth in the top open-pro category. (David Madison, Cowboy State Daily)
  • Lindsay Nohl speeds through the longest, meanest, baddest downhill mountain bike race in the Tetons: The Colter Cup. The rider from Victor, Idaho, finished tenth in the top open-pro category.
    Lindsay Nohl speeds through the longest, meanest, baddest downhill mountain bike race in the Tetons: The Colter Cup. The rider from Victor, Idaho, finished tenth in the top open-pro category. (Graham Groth and Grand Targhee)

To The Finish Line

Marcus Mattox, a racer from Bozeman, Montana, crossed the finish line in Teton Canyon with the wide-eyed look of someone who'd just survived a beating. 

“That upper section was hard on me,” said Mattox. “You kind of come around a corner and there’s those rocks that are kind of on an angle. I came around there too hot, slid out, dabbed a foot but didn’t go down, thank God.” 

Had Mattox fully tumbled, his shins-to-shoulders body armor would have helped protect him. The gear was an upgrade from the jeans shorts he used to race in. 

Mattox wasn’t the only shell-shocked racer at the finish line. 

“I’m pretty beat. It was harder than I thought it was going to be. It was a really long race,” said Mentzer, aka The Cheetah. “My hands were kind of numb, tingling.”

It’s a sensation riders refer to as “getting gripped,” which happens instinctually as riders hold on tight while their bodies and the bike’s shock absorbers try to smoothly endure it all while increasing speed. 

Some coaches tell riders to think of themselves as a hinge and allow their bodies to swing free with each high speed blow. But for it to all work, riders need to hold on tight. 

While The Cheetah caught his breath, his coworker Caleb Bender flew through the finish line on a bike with limited shock absorption.

Bender made a strategic choice, picking speed over full suspension. It paid off with a record-breaking time of 27 minutes and 39 seconds, besting last year’s time by around three minutes.

"This is a cross-country bike," he explained, patting his ride. "I think it's perfect."

While others struggled with the pedaling sections on their downhill bikes, Bender took advantage of his hometown knowledge and athletic ability to become his own human shock absorber through everything the course throws at riders. 

“It has a lot of variety. Has a lot of chunk at the top and then it’s pedally at the bottom sections. Just a lot of rocks, really bumpy,” said Bender, who’s headed to Bible college in Colorado in the fall and plans to compete in 10 races this year.  

“I was pretty nervous at the top,” he said. “I’m just glad I finished without crashing.”

 

David Madison can be reached at david@cowboystatedaily.com.

Authors

DM

David Madison

Energy Reporter

David Madison is an award-winning journalist and documentary producer based in Bozeman, Montana. He’s also reported for Wyoming PBS. He studied journalism at the University of North Carolina-Chapel Hill and has worked at news outlets throughout Wyoming, Utah, Idaho and Montana.