2019 Trek

X-Caliber 8

A 27.5″ / 29″ aluminum frame hardtail crosscountry bike with upper mid-range components.
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MSRP$1,199
Weight29.6 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox 30 Silver TK
Wheels27.5″ / 29″ Aluminum
Drivetrain2 × 10
GroupsetXT, Deore
BrakesHydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
X-Caliber 8
Other Crosscountry bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

X-Caliber 8

27 mph

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Highest gear

(descending)

Sizing
XS

4'5" – 5'2"

SM

5'0" – 5'5"

MD

5'2" – 5'8"

MD/LG

5'6" – 5'11"

LG

5'9" – 6'3"

XL

6'1" – 6'6"

XXL

6'4" – 6'8"

Rider Fit Notes

None yet.

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Reviews
MTBR
Trek Roscoe and X-Caliber hardtails reviewed

Nov 2017

Trek's budget-friendly hardtails have evolved on two distinct paths, an affordable XC steed and a fun trail machine. Born out of the same frame, find out how these two bikes compare. - Mtbr.com

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off.road.cc
Trek X-Caliber 9

Apr 2017

If you're looking for a rapid handling cross-country hardtail then the X-Caliber delivers in spades, but it's a bit of a handful when the trail turns downhill thanks to steep geometry and a dated cockpit. Buyer's guide to mountain bikes - get the best MTB for you The best mountain bikes for under £1,000 - the best budget buys ridden and rated Trek launch updated 2020 X-Caliber aluminium hardtail cross-country bike The X-Caliber range is Trek's entry to their proper cross-country hardtail offerings, designed to tackle proper off-road riding rather than being a multi-sport machine.

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MBR
Trek X-Caliber 8 (2016) review - MBR

Jul 2016 · Alan Muldoon

The Trek looks amazing and has a decent spec, it’s just a shame the frame isn’t more trail-focused

Highs
  • Quality frame and spec

Lows
  • Fork is under sprung for frame size

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, G2 Geometry

BB StandardBSA, 73mm, Threaded

Fork

RockShox 30 Silver, Solo Air, rebound adjust, TurnKey hydraulic lockout, tapered steerer, G2 Geometry w/51mm offset on 29ers, 100mm travel (13.5: 80mm travel)

Travel100mm

Spring TypeAir

Bottom Bracket

Shimano BB52, 73mm

Headset

Semi-integrated, cartridge, 1-1/8˝ top, 1.5˝ bottom

Stem

Bontrager Elite, 31.8mm, 7 degree, Blendr compatible

Handlebar

Bontrager alloy, 31.8mm, 5mm rise, 720mm width (13.5: 690mm width)

Saddle

Bontrager Arvada

Seatpost

Bontrager alloy, 2-bolt head, 31.6mm, 12mm offset

TypeRigid

Pedals

VP-536 nylon platform

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

Shimano Deore XT M781, Shadow

Front Derailleur

Shimano Deore M617

Crank

Race Face Ride, 36/22

Shifters

Shimano Deore M6000, 10 speed

Cassette

Shimano HG50, 11-36, 10 speed

Chain

KMC X10

Brakes

Shimano MT200 hydraulic disc

TypeHydraulic Disc

Wheels
Rims

Bontrager Kovee 28-hole Tubeless Ready, tubeless rim strips and valves sold separately

Front Hub

Formula DC20 LW alloy

Rear Hub

Formula DC2241, Boost141

Tires

Bontrager XR2, 29x2.20˝ (13.5 & 15.5: 27.5x2.20˝)

Rider Notes
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Last updated September 16
Not listed for 1,676 days