X-Caliber | Trek Bikes
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X-Caliber is a cross country hardtail mountain bike built for speed, efficiency, and quick handling on singletrack trails. It's great for new riders, XC racers, and anyone who wants to cover a lot more trail in a lot less time.

Built for speed

Every X-Caliber model features quick-handling geometry and parts chosen for XC racing, like fast-rolling tires and front suspension that locks out for efficiency on climbs and sprints. Every model comes with a 2x drivetrain and a wide range of gears.

High-tech frame

The Alpha Gold Aluminum frame has internal routing, which looks great and protects your cables from the elements. X-Caliber’s frame is light, stiff, and features Boost141 rear hub spacing that allows for more tire clearance and a stronger wheel.

The best fit for every rider

X-Caliber comes in seven frame sizes to suit any height, and Smart Wheel Size ensures every rider gets the fastest wheel that fits. Larger sizes have bigger 29˝ wheels and smaller sizes have more proportional 27.5˝wheels.

Ready for accessories

X-Caliber’s integrated rack and kickstand mounts make it easy to outfit your bike for any adventure, which really comes in handy if your mountain bike is also your commuter. The frame is also set up to accept an internally-routed dropper post.

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