2021 Trek

X-Caliber 9

A 29″ / 29″ aluminum frame hardtail crosscountry bike with upper mid-range components.
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Manufacturer Price

$1,649
Weight29.5 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox Judy Silver TK
Wheels29″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetXT, SLX
BrakesHydraulic Disc
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Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
X-Caliber 9
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)

26 mph

X-Caliber 9

27 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR

BB StandardBSA, 73mm, Threaded

Tire Clearance2.8"

ColorTeal / Volt Fade

Fork

Size: XS, RockShox Judy Silver, Solo Air, TurnKey remote lockout, tapered steerer, Boost110, 15mm Maxle, 80mm travel; Size: S, RockShox Judy Silver, Solo Air, TurnKey remote lockout, tapered steerer, Boost110, 15mm Maxle, 100mm travel; Size: M, ML, L, XL, XXL, RockShox Judy Silver, Solo Air spring, TurnKey remote lockout, tapered steerer, Boost110, 15 mm Maxle Lite, 100 mm travel

Travel100mm

Spring TypeAir

Bottom Bracket

Shimano SM-BB52, 73 mm, threaded external bearing

Headset

Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8'' top, 1.5'' bottom

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: ML, 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

Handlebar

Size: XS, Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width; Size: S, M, ML, L, XL, XXL, Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width

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: ML, L, XL, XXL, Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length

TypeRigid

Pedals

VP-536 nylon platform

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset
Rear Derailleur

Shimano XT M8100, long cage

Crank

Size: XS, S, Shimano MT611, 30T steel ring, alloy spider, 52 mm chainline, 170 mm length; Size: XS, S, Shimano MT610, 30T steel ring, Boost (52mm chainline), 170mm; Size: M, ML, L, XL, XXL, Shimano MT611, 30T steel ring, alloy spider, 52 mm chainline, 175 mm length; Size: M, ML, L, XL, XXL, Shimano MT610, 30T steel ring, Boost, 175 mm

Shifters

Shimano SLX M7100, 12-speed

Cassette

Shimano SLX M7100, 10-51T, 12-speed

Chain

Shimano SLX M7100, 12-speed

Brakes

Size: XS, S, M, ML, L, XL, XXL, Shimano hydraulic disc, MT4100 lever, MT410 calliper; Size: XS, S, M, ML, L, XL, XXL, Shimano hydraulic disc, MT401 lever, MT400 caliper

TypeHydraulic Disc

Wheels
Rims

Size: XS, S, Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve; Size: M, ML, L, XL, XXL, Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve; Size: M, ML, L, XL, XXL, Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve

Spokes

15 g stainless steel

Front Hub

Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle

Rear Hub

Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost141, 5 mm QR

Tires

Size: XS, S, Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.20''; Size: XS, S, Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.20"; Size: M, ML, L, XL, XXL, Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.20"

Disc Rotors

Size: XS, S, M, ML, L, XL, XXL, Shimano RT56, 6-bolt, 180 mm; Size: XS, S, M, ML, L, XL, XXL, Shimano RT56, 6-bolt, 160 mm

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Last updated March 18
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