Bike Comparison
    MSRP
    $1,500$1,899
    Where to Buy
    $1

    At

    $1

    At

    Category
    TrailTrail
    Weight
    31.5 lbs
    4.2
    4.5
    AluminumAluminum
    Fork
    Giant Crest 34RockShox Recon Silver RL
    Wheels
    AluminumAluminum
    27.5″27.5″ / 29″
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    Deore, PraxisDeore
    Drivetrain
    1 × 121 × 12
    Suspension
    HardtailHardtail
    Front Travel
    130mm140mm
    Brand Site

    giant-bicycles.com

    trekbikes.com

    Summary
    The Giant Fathom 2 is a 27.5″ aluminum frame hardtail trail bike with upper mid-range components.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    2021 Fathom 2
    2023 Roscoe 7
    Other Trail 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)

    25 mph

    2021 Fathom 2

    26 mph

    2023 Roscoe 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
    Frame

    ALUXX SL-Grade Aluminum

    ColorsConcrete; Black / Rosewood

    aluminum frame

    ColorsConcrete; Black / Rosewood

    Fork

    Giant Crest 34 RCL, 130mm, Boost 15x110

    Travel140mm

    Spring TypeAir

    Size: XS, RockShox Recon Silver RL, SoloAir spring, Motion Control damper, lockout, tapered steerer, 37mm offset, Boost110, Maxle Stealth, 140mm travel; Size: S, M, M/L, L, XL, RockShox Recon Silver RL, SoloAir spring, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, Maxle Stealth, 140mm travel

    Travel140mm

    Spring TypeAir

    Shock

    N/A

    Bottom Bracket

    Praxis, press fit

    Shimano SM-BB52, 73mm, threaded external bearing

    Headset

    FSA IS-2, 1-1/8'' top, 1.5'' bottom

    Stem

    Giant Contact TR 35

    Size: XS, S, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 35mm length; Size: M, M/L, L, XL, Bontrager alloy, 31.8mm, Blendr compatible, 7 degree, 50mm length

    Handlebar

    Giant Contact Trail, 35

    Size: XS, S, Bontrager alloy, 31.8mm, 15mm rise, 750mm width; Size: M, M/L, L, XL, Bontrager Rhythm Comp, alloy, 31.8mm, 15mm rise, 780mm width

    Saddle

    Giant Romero

    Bontrager Arvada, steel rails, 138mm width

    Seatpost

    Giant Contact Switch dropper post with remote, 30.9

    Size: XS, S, TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; Size: M, TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length; Size: M/L, L, XL, TranzX JD-YSP18, 150mm travel, internal routing, 31.6mm, 470mm length

    Pedals

    N/A

    VP-536 nylon platform

    Grips

    Bontrager XR Trail Comp, nylon lock-on

    Groupset
    Rear Derailleur

    Shimano Deore, Shadow+

    Shimano Deore M6100, long cage

    Front Derailleur

    N/A

    Crank

    Praxis Cadet Boost, 30t

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

    Shifters

    Shimano Deore

    Shimano Deore M6100, 12 speed

    Cassette

    Shimano Deore, 12-speed, 10x51

    Shimano Deore M6100, 10-51, 12 speed

    Chain

    Shimano

    Shimano Deore M6100, 12 speed

    Brakes

    Tektro TKD143 [F&R] 2-Piston, 180mm Rotors [F&R]

    Shimano MT200 hydraulic disc

    Brake Levers

    Tektro TKD143

    Wheels
    Rims

    Giant AM 27.5 wheelset, alloy, 30mm inner

    Size: XS, Bontrager Line Comp 30, Tubeless Ready, 28-hole, Presta valve; Size: S, M, M/L, L, XL, Bontrager Line TLR 30, Tubeless Ready, 28-hole, Presta valve; Size: S, M, M/L, L, XL, eThirteen LG1 Enduro tubeless compatible rim

    Spokes

    Sapim

    Front Hub

    Shimano Boost [F] 15x110 [R] 12x148, sealed bearing

    Shimano MT400, centerlock, Boost110, 15mm thru axle

    Rear Hub

    Shimano Boost [F] 15x110 [R] 12x148, sealed bearing

    Shimano MT510, centerlock, Boost148, 12mm thru axle

    Tires

    Maxxis Ardent Race, tubeless, 27.5x2.6, foldable, TR

    Size: XS, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60''; Size: S, M, M/L, L, XL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''

    Disc Rotors

    Shimano RT10, centerlock, 180mm

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