Bike Comparison
    Marlin 42021 Trek
    Recommended
    MSRP
    $529
    Where to Buy
    —
    $1

    At

    Category
    		Crosscountry
    Weight
    		31.1 lbs
    2.4
    Frame
    		Aluminum
    Fork
    		Suntour
    Wheels
    		Aluminum
    Wheel Size
    		29″ / 29″
    Brakes
    		Mechanical Disc
    Motor
    Battery
    Groupset
    		Tourney, Altus
    Drivetrain
    		3 × 7
    Suspension
    		Hardtail
    Front Travel
    		75mm
    Brand Site

    trekbikes.com

    Summary
    		The Trek Marlin 4 is a 29″ / 29″ aluminum frame hardtail crosscountry bike with mid-range components and mechanical disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    Marlin 4
    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 4

    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 42021 Trek
    Frame

    Alpha Silver Aluminium w/semi-integrated head tube, rack and mudguard mounts, G2 Geometry on 29ers

    Tire Clearance: 2.2"

    Colors: Matte Anthracite; Matte Quicksilver; Green-Light; Magenta

    Fork

    SR Suntour M-3030, coil spring, preload, 75 mm travel

    Bottom Bracket

    Sealed cartridge

    Headset

    Semi-integrated, 1-1/8''

    Stem

    Bontrager alloy, 31.8mm, 7 degree, Blendr compatible

    Handlebar

    Bontrager alloy, 31.8mm, 15mm rise

    Saddle

    Bontrager Evoke 1

    Seatpost

    Bontrager SSR, 2-bolt head, 27.2mm, 12mm offset

    Pedals

    Wellgo nylon platform

    Grips

    Bontrager Satellite Plus, ergonomic

    Groupset
    Rear Derailleur

    Shimano Tourney TY300

    Front Derailleur

    Shimano Tourney TY500

    Crank

    Shimano Tourney TY301, 42/34/24

    Shifters

    Shimano Altus EF500, 7 speed

    Cassette

    Shimano TZ21 14-28, 7 speed

    Chain

    KMC Z51

    Brakes

    Tektro M280 mechanical disc

    Wheels
    Rims

    Bontrager Connection 32-hole double-walled

    Spokes

    Size: XS, S, M, ML, L, XL, XXL, 14g, stainless; Size: M, 14g, stainless steel, black

    Front Hub

    Formula DC20 alloy

    Rear Hub

    Formula DC31 alloy

    Tires

    Bontrager XR2, 29x2.20˝ front, 29x2.00˝ rear (13.5 & 15.5: 27.5x2.20˝)

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