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    Crank up steep climbs with smooth-rolling efficiency. Swoop down singletrack descents with stability and speed. This aluminium hardtail 29er delivers a balanced ride quality on XC terrain.

    Built on an ALUXX SL aluminium frame, the Fathom 29 features updated geometry that produces a stable ride quality for challenging XC trails. The frame is optimised for a 130mm suspension fork for smooth control on the descents. An updated Giant WheelSystem comes with tubeless tires already set up, making it easy to experience added efficiency and control, plus a reduced risk of flats on technical terrain.


    Trail Tuned Design

    ALUXX SL aluminium frameset is hand-built in-house by the world leader in aluminium engineering.

    Responsive Handling

    Lightweight ALUXX SL aluminum hardtail frame offers agile acceleration and maneuverability to help riders climb, corner and hammer the flats with efficiency and speed.

    Smooth Control

    130mm Suspension fork absorbs roots, rocks and ruts. Grippy, high-volume tires boost traction on rugged terrain. And a dropper seatpost with handlebar remote lets you adjust saddle height on the fly for confident positioning on changing terrain.

    • Sizes S, M, L, XL
    • Colors Black/Blue Ashes, Trekking Green
    • Frame ALUXX SL grade aluminium
    • Fork SR Suntour Raidon 34 LOR, OverDrive steerer, 15x110mm, 130mm travel
    • Shock N/A
    • Handlebar Giant Contact trail rise, 35mm
    • Stem Giant Contact SL, 35mm, 8 degree
    • Seatpost Giant Contact Switch Dropper, 30.9mm
    • Saddle Giant Romero
    • Pedals N/A
    • Shifters Shimano Deore
    • Front Derailleur N/A
    • Rear Derailleur Shimano Deore, 12sp
    • Brakes Tektro TDK143 hydraulic disc, 180mm
    • Brake Levers Tektro TDK143 hydraulic
    • Cassette Shimano Deore, 11-51T, 12sp
    • Chain Shiman Deore
    • Crankset Praxis Cadet Boost, 30T
    • Bottom Bracket Praxis, press fit
    • Rims Giant AM disc, tubeless
    • Hubs Shimano MT-410, 28H
    • Spokes Stainless steel, 14g
    • Tires "Fr: Maxxis Minion DHF, TR, EXO, Folding, 29x2.5” Rr: Maxxis Aggressor, TR, EXO, Folding, 29x2.5”"
    • Weight The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.

     Download PDF

    All specifications listed are subject to change without notice.


    Built on a lightweight ALUXX SL aluminum frameset with progressive trail geometry, Fathom 29 is designed for the added stability and roll-over capabilities of 29-inch wheels with grippy, high-volume 2.5-inch tires. It has a number of trail-specific features including a 130mm suspension fork and dropper seatpost. Here’s a look at its key technologies:

    Fathom 29 with interactive tooltips


    Sizing to be used as a reference only. Please check with a local authorized Liv or Giant dealer to determine the correct size.
    Available sizes may vary from country to country.

    Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
    • S
        163 cm to 172 cm
    • M
        171 cm to 180 cm
    • L
        179 cm to 188 cm
    • XL
        187 cm to 198 cm
    bike diagram with measurements referenced in table that follows
    Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
        S M L XL
    A SEAT TUBE LENGTH (mm) 380 430 465 495
    B SEAT TUBE ANGLE 75.0° 75.0° 75.0° 75.0°
    C TOP TUBE LENGTH (mm) 592 612 639 662
    D HEAD TUBE LENGTH (mm) 95 95 105 115
    E HEAD TUBE ANGLE 66.0° 66.0° 66.0° 66.0°
    F FORK RAKE (mm) 44 44 44 44
    G TRAIL (mm) 122 122 122 122
    H WHEELBASE (mm) 1154 1174 1203 1227
    I CHAIN STAY LENGTH (mm) 435 435 435 435
    J BOTTOM BRACKET DROP (mm) 60 60 60 60
    K STACK (mm) 622 622 631 640
    L REACH (mm) 425 445 470 490
    M STAND OVER HEIGHT (mm) 730 745 765 790
    O STEM LENGTH (mm) 40 40 50 50
    P CRANK LENGTH (mm) 165 170 170 170
    Q WHEEL SIZE 29" 29" 29" 29"

    *Specifications are subject to change. Please read our Terms & Conditions

    *Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.

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