Bike Comparison
    Marlin 72021 Trek
    Recommended
    MSRP
    		$899
    Where to Buy
    —
    $1

    At

    Category
    		Crosscountry
    Weight
    		30.4 lbs
    3.9
    Frame
    		Aluminum
    Fork
    		RockShox Judy
    Wheels
    		Aluminum
    Wheel Size
    		27.5″ / 29″
    Brakes
    		Hydraulic Disc
    Motor
    Battery
    Groupset
    		Deore, FSA
    Drivetrain
    		1 × 10
    Suspension
    		Hardtail
    Front Travel
    		100mm
    Brand Site

    trekbikes.com

    Summary
    		The Trek Marlin 7 is a 27.5″ / 29″ aluminum frame hardtail crosscountry bike with upper mid-range components.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Marlin 7
    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)

    22 mph

    Marlin 7

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Marlin 72021 Trek
    Frame

    Alpha Silver Aluminum, internal routing, chainstay disc brake mount, rack and kickstand mount, 135x5mm QR

    BB Standard: BSA, 73mm, Threaded

    Tire Clearance: 2.2"

    Colors: Matte Nautical Navy / Matte Anthracite; Marigold to Radioactive Red Fade

    Fork

    Size: S, RockShox Judy, coil spring, preload, TurnKey lockout, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel; Size: M, ML, L, XL, XXL, RockShox Judy, coil spring, preload, TurnKey lockout, 46mm offset for 29'' wheel, 100mm QR, 100mm travel

    Bottom Bracket

    FSA, 73mm, threaded cartridge, 122.5mm spindle

    Headset

    Semi-integrated, 1-1/8''

    Stem

    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

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

    Saddle

    Bontrager Arvada, steel rails, 138mm width

    Seatpost

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

    Pedals

    VP-536 nylon platform

    Grips

    Bontrager XR Trail Comp, nylon lock-on

    Groupset
    Rear Derailleur

    Shimano Deore M5120, long cage

    Crank

    Size: S, M, FSA Alpha Drive, 28T steel ring, Boost, 170mm length; Size: ML, L, XL, XXL, FSA Alpha Drive, 28T steel ring, Boost, 175mm length

    Shifters

    Shimano Deore M4100, 10 speed

    Cassette

    Shimano Deore M4100, 11-46, 10 speed

    Chain

    KMC X10, 10 speed

    Brakes

    Shimano MT200 hydraulic disc

    Wheels
    Rims

    Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve

    Spokes

    14g stainless steel

    Front Hub

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

    Rear Hub

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

    Tires

    Size: 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''

    Disc Rotors

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

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