Bike Comparison
    MSRP
    $1,599$1,929
    Where to Buy
    $1

    At

    $1

    At

    Category
    CrosscountryCrosscountry
    Weight
    28.8 lbs28.1 lbs
    4.2
    5.2
    AluminumAluminum
    Fork
    RockShox JudyRockShox Recon Gold RL
    Wheels
    AluminumAluminum
    27.5″ / 29″27.5″ / 29″
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    XT, DeoreXT, SLX
    Drivetrain
    1 × 121 × 12
    Suspension
    HardtailHardtail
    Front Travel
    100mm100mm
    Brand Site

    trekbikes.com

    trekbikes.com

    Summary
    The Trek X-Caliber 8 and Trek X-Caliber 9 are both 27.5″ / 29″ aluminum frame hardtail crosscountry bikes. The X-Caliber 9 has a dropper post, better components, and a better fork.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    X-Caliber 8
    X-Caliber 9
    Other Crosscountry bikes
    Gear Range

    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 8

    26 mph

    X-Caliber 9

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Frame

    aluminum frame

    BB StandardBSA, 73mm, Threaded

    Tire Clearance2.8"

    ColorsSatin Lithium Grey; Crystal White

    aluminum frame

    BB StandardBSA, 73mm, Threaded

    Tire Clearance2.8"

    ColorsSatin Lithium Grey; Crystal White

    Fork

    Size: XS, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Lite, 80mm travel; Size: S, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15mm Maxle Lite, 100mm travel; Size: M, M/L, L, XL, XXL, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15mm Maxle Stealth, 100mm travel

    Travel100mm

    Spring TypeAir

    Size: S, RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 37mm offset, Boost110, 15mm Maxle Stealth, 100mm travel; Size: M, ML, L, XL, XXL, RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 100mm travel

    Travel100mm

    Spring TypeAir

    Bottom Bracket

    Size: XS, S, M, M/L, L, XL, XXL, Shimano BB-MT501 BSA; Size: XS, S, M, M/L, L, XL, XXL, Shimano SM-BB52, 73mm, threaded external bearing

    Shimano SM-BB52, 73mm, threaded external bearing

    Headset

    Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom

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

    Stem

    Size: XS, S, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: M, M/L, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: L, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: XL, XXL, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length

    Size: S, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: M, ML, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: L, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: XL, XXL, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length

    Handlebar

    Size: XS, Bontrager alloy, 31.8mm, 5mm rise, 690mm width; Size: S, M, Bontrager alloy, 31.8mm, 5mm rise, 720mm width; Size: M/L, L, XL, XXL, Bontrager alloy, 31.8mm, 15mm rise, 750mm width

    Size: S, M, Bontrager alloy, 31.8mm, 5mm rise, 720mm width; Size: ML, L, XL, XXL, Bontrager alloy, 31.8mm, 15mm rise, 750mm width

    Saddle

    Bontrager Arvada, steel rails, 138mm width

    Bontrager Arvada, steel rails, 138mm width

    Seatpost

    Size: XS, S, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: M, Bontrager alloy, 31.6mm, 12mm offset, 360mm length; Size: M/L, L, XL, XXL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length

    Size: S, M, TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; Size: ML, L, XL, XXL, TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length

    Pedals

    VP-536 nylon platform

    VP-536 nylon platform

    Grips

    Bontrager XR Trail Comp, nylon lock-on

    Bontrager XR Trail Comp, nylon lock-on

    Groupset
    Rear Derailleur

    Shimano XT M8100, long cage

    Shimano XT M8100, long cage

    Crank

    Size: XS, S, M, Shimano MT511, 30T steel ring, 52mm chainline, 170mm length; Size: M/L, L, XL, XXL, Shimano MT511, 30T steel ring, 52mm chainline, 175mm length

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

    Shifters

    Shimano Deore M6100, 12 speed

    Shimano SLX M7100, 12 speed

    Cassette

    Shimano Deore M6100, 10-51, 12 speed

    Shimano SLX M7100, 10-51, 12 speed

    Chain

    Shimano Deore M6100, 12 speed

    Shimano SLX M7100, 12 speed

    Brakes

    Shimano MT200 hydraulic disc

    Shimano hydraulic disc, MT4100 lever, MT410 caliper

    Wheels
    Rims

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

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

    Spokes

    14g stainless steel

    Front Hub

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

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

    Rear Hub

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

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

    Tires

    Size: XS, S, Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 27.5x2.35''; Size: M, M/L, L, XL, XXL, Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 29x2.35''

    Size: S, Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 27.5x2.35''; Size: M, ML, L, XL, XXL, Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 29x2.35''

    Disc Rotors

    Size: XS, S, M, M/L, L, XL, XXL, Shimano RT26, 6-bolt,160mm; Size: L, XL, XXL, Shimano RT26, 6-bolt,180mm

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

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