When Sicklines first reviewed the XQUARONE EX MTB Series, the takeaway was clear: this lineup doesn’t just enter the market, it changes the conversation about what an MTB should be.
Developed in collaboration with suspension innovators NAILD, the XQUARONE EX8 and EX9 mountain bike were built to become a true one-bike quiver. With 180mm of travel on a 27.5-inch wheel platform, they blend trail efficiency with downhill MTB capability, allowing riders to climb further, descend harder, and ride longer without compromise.
Built to Extend Possibility
Both XQUARONE EX8 and EX9 mountain bikes feature full ACX carbon frames paired with 180mm of suspension travel, a combination designed for long adventures, technical trails, and demanding terrain. Riders gain the ability to cover more distance, handle tougher features, and return with greater confidence.
Sicklines also emphasized how quickly the XQUARONE MTB bike series moves over obstacles, improving lap times while keeping riders comfortable and in control. Something traditionally associated with multiple specialized bikes rather than one.
Trusted by World-Class Riders
Our top athletes have been integral to development and validation.
Mick Hannah explains:
“The XQUARONE is the best bike I’ve ever ridden… I can climb bigger mountains than ever before without losing the fun on the way back down.”
Freeride icon Kurt Sorge adds:
“This is the adventure bike I’ve always wanted — capable of big missions while still handling everything I throw at it.”
For Sicklines and for these athletes, the XQUARONE MTB bike series represents evolution, a platform able to handle freeride abuse, long-distance missions, and downhill mountain bike performance in one package.
A New Benchmark in Versatile MTB Performance
With the arrival of the Polygon XQUARONE EX8 and EX9 mountain bikes, we delivers more than innovation; it delivers a new mindset in MTB design.
Riders no longer need separate bikes for long climbs, technical trails, and aggressive descents. One refined, downhill MTB-inspired platform can now do it all.
For riders seeking a forward-thinking full suspension mountain bike built to push boundaries, the XQUARONE EX MTB Series shows exactly why Sicklines praised Polygon as a brand redefining what modern mountain biking can look like.
Ready to see what’s next in performance and innovation? Explore our latest MTB lineups and discover the bike built for your next adventure.
