Bike Comparison

The Trek X-Caliber 7, Trek X-Caliber 8, and Trek X-Caliber 9 are all 29″ / 29″ aluminum frame hardtail crosscountry bikes. The X-Caliber 9 has better components. Explore the differences below.

    2021 Trek X-Caliber 7
    2021 Trek X-Caliber 8
    2021 Trek X-Caliber 9
    MSRP$1,099$1,329$1,649
    Spec Level
    Where to Buy
    $1

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    CategoryCrosscountryCrosscountryCrosscountry
    Weight29.5 lbs30.4 lbs29.5 lbs
    FrameAluminumAluminumAluminum
    ForkRockShox JudyRockShox JudyRockShox Judy
    WheelsAluminumAluminumAluminum
    Wheel Size29″ / 29″29″ / 29″29″ / 29″
    BrakesHydraulic DiscHydraulic DiscHydraulic Disc
    GroupsetDeoreSX EagleXT, SLX
    Drivetrain1 × 101 × 121 × 12
    SuspensionHardtailHardtailHardtail
    Front Travel100mm100mm100mm
    SeatpostRigidRigidRigid
    Brand Sitetrekbikes.comtrekbikes.comtrekbikes.com

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    Spec Level

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

    Spec level →$0$200$400$600$800$1,000$1,200$1,400$1,600
    X-Caliber 7
    X-Caliber 8
    X-Caliber 9

    Gear Range

    Trek X-Caliber 7

    24 mph

    Trek X-Caliber 8

    24 mph

    Trek X-Caliber 9

    26 mph

    Learn More


    Geometry

    Specs
    Frame

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

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

    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, 100x5 mm QR, 80 mm travel; Size: S, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, 100x5 mm QR, 100 mm travel; Size: M, M/L, L, XL, XXL, RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 46 mm offset, 100x5 mm QR, 100 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, Boost110, 15 mm Maxle Stealth, 100 mm travel

    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

    Bottom Bracket

    Truvativ Powerspline, 73 mm, threaded cartridge, 118 mm spindle

    Shimano SM-BB52, 73 mm, threaded external bearing

    Headset

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

    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, 31.8 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

    Size: 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

    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, M/L, L, XL, XXL, Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width

    Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width

    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

    Bontrager Arvada, steel rails, 138 mm width

    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

    Size: 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

    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

    Grips

    Bontrager XR Trail Comp, nylon lock-on

    Bontrager XR Trail Comp, nylon lock-on

    Groupset
    Rear Derailleur

    Shimano Deore M5120, long cage

    SRAM SX Eagle

    Shimano XT M8100, long cage

    Crank

    Size: XS, S, M, Shimano Deore M5100, 30T steel ring, Boost, 170 mm length; Size: M/L, L, XL, XXL, Shimano Deore M5100, 30T steel ring, Boost, 175 mm length

    Size: 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

    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 Deore M4100, 10 speed

    SRAM SX Eagle, 12-speed

    Shimano SLX M7100, 12-speed

    Cassette

    Shimano Deore M4100, 11-46, 10-speed

    SRAM PG-1210 Eagle, 11-50, 12-speed

    Shimano SLX M7100, 10-51, 12-speed

    Chain

    KMC X10, 10-speed

    SRAM SX Eagle, 12-speed

    Shimano SLX M7100, 12-speed

    Brakes

    Shimano MT200 hydraulic disc

    Shimano MT200 hydraulic disc

    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

    Wheels
    Rims

    Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve

    Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve

    Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve

    Spokes

    14 g stainless steel

    14 g stainless steel

    15 g stainless steel

    Front Hub

    Formula DC-20, alloy, 6-bolt, 100 mm ThruSkew

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

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

    Rear Hub

    Formula DC-2241, alloy, 6-bolt, Shimano 8/9/10 freehub, Boost141, 5 mm QR

    Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141, 5 mm QR

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

    Tires

    Size: XS, S, Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20"; Size: M, M/L, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20"

    Size: 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"

    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"

    Disk Rotors

    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

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

    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