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Trek x-caliber 8

By Trek
$799.93 $1,699.99
SKU: 5259715 // Barcode: 601842581841
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X-Caliber 8 is a cross country mountain bike made for fast laps and long days on the trail. Its built with special attention to value and the parts that make the biggest difference in performance. A 1x Shimano drivetrain, RockShox fork, and hydraulic disc brakes make it a great choice for new mountain bikers and XC racers searching for fast, fun, singletrack adventure.
  • It has the price of a more basic hardtail, but the parts and performance of a more expensive one
  • The frame is fully compatible with higher-end parts, like race wheels and a dropper post, if you ever find the need to upgrade
  • Smart Wheel Sizing means youll get the fastest wheel that fits (29˝ wheels on larger frames, 27.5˝ wheels on smaller frames)
  • The 1x drivetrain delivers a wide range of gearing with the simplicity of a single shifter

High tech frame

The Alpha Gold Aluminum frame is packed with features that make your ride better. A tapered head tube gives you more precise, confident handling on the front end, while Boost 141 rear hub spacing gives you shorter chainstays for more nimble handling out back.

Built for speed

X-Caliber is a classic XC hardtail with quick-handling geometry, weight-conscious parts, and just enough suspension to take the edge off bumps. These models are built for efficiency, making them great for racers or anyone else who wants to cover more ground in less time.

Shimano XT

Shimano XT is the original mountain bike groupset and trusted by generations of mountain bikers around the world. Whatever the trail, wherever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.

Upgrade your pedals and love your bike more

Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.


Frame Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, 5mm QR
Fork RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Lite, 80mm travel
Wheel Front /
Tire Maxxis Ardent Race, tubeless ready, EXO casing, folding bead, 60tpi, 27.5x2.35
Tire Part Bontrager TLR sealant, 6oz
Hub Front Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Hub Rear Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost141, 5mm QR
Rim Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve // Bontrager Kovee, double-wall, Tubeless Ready, 32-hole, 23mm width, Presta valve
Rim Strip Bontrager TLR
Shifter Shimano Deore M6100, 12 speed
Rear Derailleur Shimano XT M8100, long cage
Crank Shimano MT511, 30T steel ring, 52mm chainline, 170mm length
Bottom Bracket Shimano BB-MT501 BSA
Cassette Shimano Deore M6100, 10-51, 12 speed
Chain Shimano Deore M6100, 12 speed
Brake Rotor Shimano RT26, 6-bolt,160mm
Pedal VP-536 nylon platform
Saddle Bontrager Arvada, steel rails, 138mm width
Seatpost Bontrager alloy, 31.6mm, 12mm offset, 330mm length
Handlebar Bontrager alloy, 31.8mm, 5mm rise, 690mm width
Stem Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm length
Headset Semi-integrated, loose ball bearing, 1-1/8 top, 1.5 bottom
Grips Bontrager XR Trail Comp, nylon lock-on

Geometry Chart

XSSMMLLXLXXL
B B Drop 5.8
B B Height 29.2
Chainstay Length 42.5
Eff Seat Tube Angle 73.5°
Eff Top Tube 54.4
Frame Reach 37.6
Frame Size Letter XS
Frame Size Number 13.5"
Frame Stack 56.5
Head Angle 69.3°
Head Tube Length 9
Offset 4.2
Seat Tube 34.3
Seat Tube Angle 73.5°
Standover 69.8
Trail 8.8
Wheelbase 103.6
Wheel Size 27.5"
B B Drop 4.8
B B Height 30.2
Chainstay Length 42.5
Eff Seat Tube Angle 73.5°
Eff Top Tube 55.5
Frame Reach 38.5
Frame Size Letter S
Frame Size Number 15.5"
Frame Stack 57.4
Head Angle 69.3°
Head Tube Length 9
Offset 4.2
Seat Tube 36.8
Seat Tube Angle 73.5°
Standover 72.4
Trail 8.8
Wheelbase 105.3
Wheel Size 27.5"
B B Drop 5.8
B B Height 31.1
Chainstay Length 43.8
Eff Seat Tube Angle 73.0°
Eff Top Tube 60.1
Frame Reach 41.8
Frame Size Letter M
Frame Size Number 17.5"
Frame Stack 59.8
Head Angle 69.5°
Head Tube Length 9
Offset 4.2
Seat Tube 41.9
Seat Tube Angle 71.9°
Standover 74.8
Trail 9.4
Wheelbase 110.9
Wheel Size 29"
B B Drop 5.8
B B Height 31
Chainstay Length 43.8
Eff Seat Tube Angle 73.0°
Eff Top Tube 61.7
Frame Reach 43.4
Frame Size Letter ML
Frame Size Number 18.5"
Frame Stack 59.8
Head Angle 69.5°
Head Tube Length 9
Offset 4.2
Seat Tube 44.4
Seat Tube Angle 71.9°
Standover 75.7
Trail 9.4
Wheelbase 112.5
Wheel Size 29"
B B Drop 5.8
B B Height 31
Chainstay Length 43.8
Eff Seat Tube Angle 73.0°
Eff Top Tube 63.7
Frame Reach 45.1
Frame Size Letter L
Frame Size Number 19.5"
Frame Stack 60.8
Head Angle 69.5°
Head Tube Length 10
Offset 4.2
Seat Tube 47
Seat Tube Angle 71.9°
Standover 75.7
Trail 9.4
Wheelbase 114.5
Wheel Size 29"
B B Drop 5.8
B B Height 31
Chainstay Length 43.8
Eff Seat Tube Angle 73.0°
Eff Top Tube 65.8
Frame Reach 46.6
Frame Size Letter XL
Frame Size Number 21.5"
Frame Stack 62.7
Head Angle 69.5°
Head Tube Length 12
Offset 4.2
Seat Tube 52.1
Seat Tube Angle 71.9°
Standover 76.8
Trail 9.4
Wheelbase 116.7
Wheel Size 29"
B B Drop 5.8
B B Height 31.1
Chainstay Length 43.8
Eff Seat Tube Angle 73.0°
Eff Top Tube 67.2
Frame Reach 48
Frame Size Letter XXL
Frame Size Number 23.0"
Frame Stack 62.7
Head Angle 69.5°
Head Tube Length 12
Offset 4.2
Seat Tube 55.9
Seat Tube Angle 71.9°
Standover 80.4
Trail 9.4
Wheelbase 118.1
Wheel Size 29"