Bike Comparison
    Rockhopper2022 Specialized
    Rockhopper Comp2022 Specialized
    Marlin 52022 Trek
    MSRP
    $700
    $1,000
    $719
    Where to Buy
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    Category
    		CrosscountryCrosscountryCrosscountry
    Weight
    		30.8 lbs
    2.4
    3.4
    3.2
    Frame
    		AluminumAluminumAluminum
    Fork
    		Suntour XCESuntour XCMSuntour XCM
    Wheels
    		AluminumAluminumAluminum
    Wheel Size
    		27.5″29″27.5″ / 26″ / 29″
    Brakes
    		Mechanical DiscHydraulic DiscHydraulic Disc
    Groupset
    		microSHIFT Mezzo, microSHIFT MarvomicroSHIFT AdventAltus, Shimano
    Drivetrain
    		2 × 81 × 92 × 8
    Suspension
    		HardtailHardtailHardtail
    Front Travel
    		100mm100mm100mm
    Brand Site

    specialized.com

    specialized.com

    trekbikes.com

    Summary
    		The Specialized Rockhopper, Specialized Rockhopper Comp, and Trek Marlin 5 are all aluminum frame hardtail crosscountry bikes. The Rockhopper has 27.5″ aluminum wheels, the Rockhopper Comp has 29″ aluminum wheels and better components, and the Marlin 5 has 27.5″ / 26″ / 29″ aluminum wheels.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Rockhopper
    Rockhopper Comp
    Marlin 5
    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

    Marlin 5

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Rockhopper2022 Specialized
    Rockhopper Comp2022 Specialized
    Marlin 52022 Trek
    Frame

    Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible

    Colors: Gloss Ice Papaya / Cast Umber; Satin Cast Blue Metallic / Ice Blue; Gloss Flo Red / White; Gloss Tarmac Black / White

    Specialized A1 premium butted alloy, zero-stack head tube, internal cable routing, 135x9mm forged dropouts, chainstay-mounted disc brake, replaceable alloy derailleur hanger, stealth rack mounts, dropper post compatible

    Colors: Gloss Ice Papaya / Cast Umber; Satin Cast Blue Metallic / Ice Blue; Gloss Flo Red / White; Gloss Tarmac Black / White

    aluminum frame

    Colors: Gloss Ice Papaya / Cast Umber; Satin Cast Blue Metallic / Ice Blue; Gloss Flo Red / White; Gloss Tarmac Black / White

    Fork

    SR Suntour XCE 27.5, 28mm stanchions, Rx Tune, coil spring, QR, 80/90/100mm travel (size-specific), 42mm offset

    Travel: 100mm

    Spring Type: Coil

    SR Suntour XCM 29, 30mm Stanchions, Rx Tune, coil spring, custom Multi-Circuit damping w/lockout, QR, 90/100mm travel (size-specific), 46mm offset

    Travel: 100mm

    Spring Type: Coil

    Size: XXS, SR Suntour XCM 30, coil spring, lockout, preload, 100mm QR, 100mm travel, 26'' wheel; Size: XS, SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 80mm travel; Size: S, SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, XXL, SR Suntour XCT 30, coil spring, preload, hydraulic lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel

    Travel: 100mm

    Spring Type: Coil

    Bottom Bracket

    Square-tapered, 73mm, internal bearings, 122.5mm spindle

    Square-tapered, 73mm, internal bearings, 122.5mm spindle

    Sealed cartridge, 73mm

    Headset

    Semi-integrated, 1-1/8''

    Stem

    Stout 3D-forged alloy, 31.8mm, 6-degree rise

    Stout 3D-forged alloy, 31.8mm, 6-degree rise

    Size: XXS, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 35mm length; Size: XS, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length; Size: S, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 60mm length; Size: M, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: ML, L, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: XL, XXL, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 90mm length

    Handlebar

    Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm

    Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm

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

    Saddle

    Bridge Sport, Steel rails, 155/143mm

    Bridge Sport, steel rails

    Bontrager Arvada, steel rails, 138mm width

    Seatpost

    Alloy, 2-bolt clamp, 30.9mm

    Alloy, 2-bolt clamp, 30.9mm

    Size: XXS, Bontrager alloy, 31.6mm, 12mm offset, 300mm length; Size: XS, S, M, Bontrager alloy, 31.6mm, 12mm offset, 330mm length; Size: ML, L, XL, XXL, Bontrager alloy, 31.6mm, 12mm offset, 400mm length

    Pedals

    SBC-54 Flat pedal

    SBC-54 Flat pedal

    VP-536 nylon platform

    Grips

    Specialized Trail Grips, lock-on

    Specialized Trail Grips, lock-on

    Bontrager XR Endurance Comp, lock-on

    Groupset
    Rear Derailleur

    microSHIFT Mezzo, 8-speed

    microSHIFT Advent, 1x9 w/ clutch

    Shimano Altus M310

    Front Derailleur

    microSHIFT Marvo 2x8

    Shimano Altus M315, 34.9mm clamp, top swing, dual pull

    Crank

    Stout 2x, forged alloy

    Stout 1x, forged alloy

    Size: XXS, Prowheel TM-CY10, 36/22, 160mm length; Size: XS, S, M, Shimano M315, 36/22, 170mm length; Size: ML, L, XL, XXL, Shimano M315, 36/22, 175mm length

    Shifters

    microSHIFT, TS39-8R, 2x8-speed

    microSHIFT Advent, 9-speed

    Shimano Altus M315, 8 speed

    Cassette

    SunRace, 8-speed, 11-34t

    microSHIFT Advent, 9-speed, 11-42t

    Shimano HG200, 12-32, 8 speed

    Chain

    KMC X8 EPT, anti-rust coating, 8-speed w/ reusable Missing Link™

    KMC X9EPT, 9-speed, anti-corrosion coating w/ reusable Missing Link™

    KMC Z8.3, 8 speed

    Brakes

    Front: Radius CX7, mechanical disc, 160mm, Rear: Radius CX7, mechanical disc, 160mm

    Front: Tektro HD-M275, hydraulic disc, 180/160mm, Rear: Tektro HD-M275, hydraulic disc, 160mm

    Tektro HD-M275 hydraulic disc

    Wheels
    Rims

    Specialized alloy, disc only, double-wall, 25mm inner width, 32h

    Stout Alloy, hookless, double-wall, 25mm inner width

    Size: XXS, Bontrager Connection, alloy, double-wall, 32-hole, 20mm width, schrader valve; Size: XS, S, M, ML, L, XL, XXL, Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve

    Spokes

    Stainless, 14g

    Stainless, 14g

    14g stainless steel

    Front Hub

    Formula 6-Bolt, disc, 100x9mm spacing, quick-release, 32H

    Shimano HB-TX505, Center Lock™ disc, 9x100mm spacing, quick-release, 28h

    Formula DC-20, alloy, 6-bolt, 5x100mm QR

    Rear Hub

    Formula SP-2125, 6-Bolt freehub, disc, 135x9mm spacing, quick-release

    Shimano FH-TX505, Center Lock™ disc, 9x135mm spacing, quick-release, 32h

    Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR

    Tires

    Front: Ground Control Sport, 27.5x2.3", Rear: Ground Control Sport, 27.5x2.3"

    Front: Ground Control Sport, 29x2.3", Rear: Ground Control Sport, 29x2.3"

    Size: XXS, Bontrager XR2 Comp, wire bead, 30 tpi, 26x2.20''; Size: XS, S, Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20''; Size: M, ML, L, XL, XXL, Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20''

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