When Zac Alsop - the YouTube wildcard with 2 million+ subscribers - dropped his Impossible Hill Climb film, it detonated on YouTube with 5 million views in just 72 hours. And it’s no surprise why. Zac isn’t just another creator trying something dangerous… he’s a former motocross racer who spent 14 years racing KTMs from age 7 to 21. So, when he decided to battle The Impossible Hill Climb in Andler, Belgium, he didn’t ask for help. He asked for a machine. - He asked for the KTM 450 SX-F.

“I wanted something READY TO RACE straight out of the box. No upgrades. No faff. Just pure speed.” - Zac Alsop

That’s exactly what he got!

“I wanted to be the second person ever to reach the top.” – Zac

Zac had been watching Andler hill climb online for years – dreaming, plotting, sizing it up.

“It just looked hard enough that I thought… yeah, maybe I could do it. Right skill, right luck, and the right bike.”

The right bike was obvious.

“I grew up racing KTMs. They’re stupid fast out of the box. And that hill has a tiny run-up – I needed maximum power instantly. The KTM 450 SX-F was the only choice. A bike built for riders who don’t want excuses – just results.”

First Ride: “It tried to rip my arms off. - My first thought was: this thing is ridiculous. It was pulling wheelies halfway up the hill. It was trying to tear my arms out – exactly what I wanted.” – Zac

At KTM Belgium, Zac swung a leg over the KTM 450 SX-F and instantly knew he’d picked the right machine.
Tool-free suspension tweaks. - Aggressive Mapping 2 mode. - Instant traction control. READY TO RACE.

Training with a King: Roel Geurts

Before the big day, Zac trained with Roel Geurts – the man who dominates Andler, one of the very few humans who’ve actually made it to the top.

“More people have been to the moon than have ridden a bike up that hill.” – Zac

Roel didn’t go easy on him - Zac didn’t want him to.

Roel drilled the three essentials:

1. Full commitment off the start,

2. Absolute precision on the rock at 50 feet,

3. Hold on and pray.

"He was the perfect mentor”.

Bei Sonnenuntergang fuhr Zac Linien, die er am Morgen nicht einmal berührt hatte. Die KTM 450 SX-F war perfekt eingestellt. Und das Feuer war entfacht.

Race Day: The Moment the Impossible Became Possible

Under the floodlights, Zac rolled up to the line – launch control armed, mapping set, second gear loaded with torque.

“My mind went blank, just pure focus.”

He blitzed qualifying. Straight into the finals. Then came the run that made history. Riders crashed. Riders slid. Riders quit. But Zac? He didn’t come to play.He came to write his name into the event forever. With the help of the KTM 450 SX-F’s explosive SOHC engine and its perfect power delivery, he carried momentum where others died out… and became the only competitor to reach the 100-meter finish.

“I remember the start… and the top… but honestly, I almost blacked out in the middle. It was just chaos and speed.” – Zac 

He did it!

Why ZAC Wanted You to See It

Zac’s film isn’t just about a climb, it’s about fear, adrenaline, and doing the thing you’ll tell your grandkids about.

“Life’s a roller coaster. You have to ride it. Even if I crashed and broke myself, it would still be a hell of a story one day.”

“Maybe. I think I’ve forgotten how terrified I was… but I want to go back and style it out at the top. Then I can really claim being the second person to complete it.” – Zac

WATCH THE IMPOSSIBLE HILL CLIMB NOW

And watch the only man crazy enough to take it on with a stock KTM 450 SX-F. After you see what this bike can do… You’ll understand why Zac put his life in its hands. 

Think you’d dare to take on your own “impossible hill”? Meet the machine that helped Zac complete the Impossible Hill Climb.