Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast, race-ready bike that pairs the right wheel size with each frame size.

Nothing beats the efficiency, simplicity and straight-up fun of an X-Cal hardtail in 29er or 27.5". Great for XC racing, marathons, 24-hour racing, or simply shredding singletrack.

Feature tour


  1. Smart Wheel Size

    One wheel size does not fit all. We put the right size wheel on every frame: 27.5” on 13.5” and 15.5” frames, 29er on 17.5” and up. Everyone wins.

  2. Race-ready spec

    2x drivetrain options, suspension lockout, and Shimano hydraulic disc brakes mean you’re ready to roll right from the go.

  3. Light, precise race frame

    Highly refined Alpha Aluminium frame uses sophisticated tube shaping to minimise weight and maximise race-day performance.

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