X-Caliber 8 - Trek Bikes (INE)

Overview

You're looking for a fast mountain bike for singletrack – one that's fully capable of taking on races, marathons and competitive group rides. You want something that is reliable and fun with dependable, lightweight parts.

A lightweight Alpha Gold Aluminium frame, a RockShox 30 Silver 100 mm suspension fork with a lockout and an air spring that's lighter and more adjustable than a coil spring, tubeless-ready wheels with Boost141 hub spacing and a smooth, efficient SRAM SX Eagle 1x12 drive train with a wide-range cassette.

With X-Caliber 8, you're getting a performance frame paired with performance parts, like a RockShox air fork and 1x SRAM Eagle drivetrain. Plus, it's equipped with durable, lightweight alloy rims that save weight and are easy to upgrade to tubeless.

It has the price of a more basic hardtail, but the parts and performance of a more expensive one
The RockShox air fork has a rebound adjust and can be tuned to the rider’s weight, and it’s way higher quality than what you’d normally get on an MTB at this price
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 you'll get the fastest wheel that fits (29˝ wheels on larger frames, 27.5˝ wheels on smaller frames)
The 1x drive train delivers a wide range of gearing with the simplicity of a single shifter

Features

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.

The Alpha Gold Aluminuum 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 at the back.

The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.

Locked suspension means your fork remains inactive, increasing pedalling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.

We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.

Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.

Learn more

Going for a long ride? Rack mounts make carrying accessories a breeze.

Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.

Internal routing ports make it easy to add a dropper post upgrade that lets you lower your saddle on the fly so it's out of your way for tricky sections of trail.

Specs

Frame	Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR
*Fork	Size: XS RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Lite, 80 mm travel
Size: S RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15 mm Maxle Lite, 100 mm travel
Size: M, M/L, L, XL, XXL RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 100 mm travel
Max compatible fork travel	120mm, XS: 100mm

Hub front	Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle
Hub rear	Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141, 5 mm QR
*Rim	Size: XS, S Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve
Size: M, M/L, L, XL, XXL Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve
Size: M, M/L, L, XL, XXL Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve
Spokes	14 g stainless steel
*Tyre	Size: XS, S Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.20''
Size: M, M/L, L, XL, XXL Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.20"
Max tyre size	Frame: 27.5x2.80" or 29x2.40", Fork: See manufacturer

Shifter	SRAM SX Eagle, 12-speed
Rear derailleur	SRAM SX Eagle
*Crank	Size: XS, S SRAM SX Eagle, GXP, 30T steel ring, Boost, 170 mm length
Size: M, M/L, L, XL, XXL SRAM SX Eagle, GXP, 30T steel ring, Boost, 175 mm length
Bottom bracket	Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle
Cassette	SRAM PG-1210 Eagle, 11-50, 12-speed
Chain	SRAM SX Eagle, 12-speed
Pedal	VP-536 nylon platform
Max. chainring size	1x: 32T

Saddle	Bontrager Arvada, steel rails, 138 mm width
*Seatpost	Size: XS, S Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
Size: M Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length
Size: M/L, L, XL, XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
*Handlebar	Size: XS Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width
Size: S, M, M/L, L, XL, XXL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width
*Stem	Size: XS, S Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
Size: M Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
Size: M/L, L Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
Size: XL, XXL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Head set	Semi-integrated, loose ball bearing, 1-1/8" top, 1.5" bottom
Brake	Shimano MT200 hydraulic disc
*Brake rotor	Size: XS, S, M, M/L, L, XL, XXL Shimano RT26, 6-bolt,160 mm
Size: L, XL, XXL Shimano RT26, 6-bolt,180 mm
Brake Set	Shimano MT200 hydraulic disc

Weight	M - 13.80 kg / 30.42 lbs (with tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Sizing

Geometry

Service

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More options

Smart Wheel Size

Suspension lockout

Internal cable routing

Blendr stem

Learn more

Rack mounts

Rear kickstand mount

Internal dropper compatible