Trek X-Caliber 4 (Gary Fisher Collection)

Trek X-Caliber 4 (Gary Fisher Collection)
  • Color: Trek Black/True Blue
  • Color: Viper Red/Trek Black
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Trek's X-Caliber is the way to jump headlong into the world of mountain biking. It sports Trek's nimble Gold Series aluminum frame and a plush 75mm-travel Suntour suspension fork for a light, lively ride and confidence over rocks, roots, potholes—you name it. And that confidence is only helped by the big 29-inch wheels and knobby tires. You'll enjoy easy pedaling and complete control thanks to the quick-shifting 24-speed drivetrain and sure-stopping mechanical-disc brakes. Plus, you'll love the comfy Bontrager seat.

Trek's G2 Geometry (version 2 of Gary Fisher's Genesis Geometry) delivers the ultimate ride for every trail. Genesis earned rave reviews for awesome handling on climbs and descents thanks to a long top tube paired with a short stem that moves the front wheel forward for top-notch confidence and control, while short chainstays add phenomenal traction. G2 Geometry takes these handling traits to the next level by boosting control on tight singletrack and technical climbs, too. This is accomplished by increasing the amount of fork offset (reducing trail), which makes G2 bikes steer more quickly, and by shortening the reach, which puts more weight on the front wheel for even better control and confidence. The two animations above showcase how G2 Geometry provides the perfect ride.


Frame Trek Alpha Gold Series aluminum
Fork SR SutTour M-3030, 75mm-travel
Rims/Wheels Bontrager AT-550
Hubs Formula
Tires Bontrager XR1, front: 29 x 2.2, rear: 2.0
Crankset Shimano
Chainrings 42/34/24
Front Derailleur Shimano Altus
Rear Derailleur Shimano Altus
Rear Cogs Shimano, 8-speed: 11-34
Shifters Shimano Altus EF51
Handlebars Bontrager
Tape/Grips Bontrager Race
Stem Bontrager
Brake Levers Shimano Altus
Brakes HL 280 mechanical disc
Pedals Wellgo nylon platform
Saddle Bontrager Evoke 1
Seatpost Bontrager SSR

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Trek Black/True Blue / 14.5-inch 768682380185 20166001014
Trek Black/True Blue / 15.5-inch 768682380208 20166002014
Trek Black/True Blue / 17.5-inch 768682380222 20166003014 XCA311810134
Trek Black/True Blue / 18.5-inch 768682380246 20166004014
Trek Black/True Blue / 19.5-inch 768682380260 20166005014 XCA319224494
Trek Black/True Blue / 21.5-inch 768682380284 20166006014
Trek Black/True Blue / 23-inch 768682380307 20166007014
Viper Red/Trek Black / 14.5-inch 768682380468 20166001114
Viper Red/Trek Black / 15.5-inch 768682380482 20166002114
Viper Red/Trek Black / 17.5-inch 768682380505 20166003114
Viper Red/Trek Black / 18.5-inch 768682380529 20166004114 XCA315216044
Viper Red/Trek Black / 19.5-inch 768682380543 20166005114 XCA315946504
Viper Red/Trek Black / 21.5-inch 768682380567 20166006114
Viper Red/Trek Black / 23-inch 768682380581 20166007114