Walk through any bike shop or browse online and you'll find no shortage of helmets labeled "enduro."

Lightweight. Well-ventilated. Comfortable enough to pedal.

But marketing and racing aren't always the same thing.

The true test of an enduro helmet isn't what it's called, it's whether riders and athletes trust it on the biggest stages. 

For AON Racing's Vid Peršak, that helmet is the 6D Alterra.

Built for the Demands of Enduro

The UCI Enduro World Cup asks more of a helmet than almost any other discipline in mountain biking.

Riders can spend hours climbing between stages before dropping into technical descents where speeds rival downhill racing. The ideal helmet has to disappear on the climbs while inspiring complete confidence on the descents.

With exceptional ventilation, lightweight construction, and downhill-certified protection, the Alterra was engineered specifically for riders who refuse to compromise.

The Choice Was His

When Vid Peršak lined up for the UCI Enduro World Cup season, he wasn't limited to the Alterra.

Like many riders in the paddock, he had the option to race in a traditional downhill helmet. Within the 6D lineup, that meant the ATB-3, our purpose-built downhill race helmet.

Instead, Vid chose the Alterra and that decision speaks volumes.

For Vid, the Alterra delivered the balance he was looking for: outstanding ventilation for long transfer stages, lightweight comfort over a full day of racing, and the confidence that comes from 6D's ODS technology. 

Designed for the Way Enduro Is Ridden

Modern enduro isn't just descending.

It's all-day adventures, long climbs, race-level descents, changing conditions, and repeated efforts that test both rider and equipment.

The Alterra was developed with those realities in mind. Large intake and exhaust vents promote airflow throughout the day, while an in-molded carbon fiber chin bar helps keep weight low without compromising strength. Combined with its DH-certified protection, the Alterra reduces fatigue on long transfers while delivering the confidence riders need when it's time to race.

It's the helmet that can stay on from the first transfer to the final finish line.

Racing Is the Ultimate Validation

Every helmet goes through testing.

Not every helmet earns the trust of professional athletes when the results matter.

Vid Peršak had a choice. He could have raced in a dedicated downhill helmet. Instead, he chose the Alterra because he believed it offered the right combination of comfort, ventilation, and protection for one of the toughest racing formats in mountain biking.

The Alterra wasn't designed to look like an enduro helmet.

It was designed to perform in enduro, and it's proving that on the biggest stage in the sport.