Giant Fathom 29 1 – 2022


Amber Glow
Amber Glow

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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 tyres already set up, making it easy to experience added efficiency and control, plus a reduced risk of flats on technical terrain.

    Key Performance Factors
    Proven alloy performance: ALUXX SL aluminium frameset is hand-built in-house by the world leader in aluminium engineering.

    Balance and stability: Frame geometry is designed to optimise the balance and roll-over capabilities of 29-inch wheels.

    XC control: Boost suspension fork offers 100mm of smooth travel for added XC control.



    Colour: Amber Glow
    Frame: ALUXX SL-Grade aluminium
    Fork: Giant Crest 34 RCL, 130mm, 44mm offset, Boost 15×110

    Handlebar: Giant Connect TR, 31.8mm
    Stem: Giant Contact, S:40mm, M:40mm, L:50mm, XL:50mm
    Seat Post: Giant Contact Switch dropper, remote S: 125mm travel / 30.9 x 395mm M: 125mm travel / 30.9 x 395mm L: 150mm travel / 30.9 x 440mm XL: 170mm travel / 30.9 x 455mm
    Saddle: Giant Romero
    Grips: Giant Sole-O

    Shifters: SRAM SX Eagle, 1×12
    Rear Derailleur: SRAM NX Eagle
    Brakes: Shimano BR-MT420/410, hydraulic, Shimano RT-26 rotors [F]180mm, [R]180mm
    Brake Levers: Shimano BR-MT401
    Cassette: SRAM SX Eagle, 11×50
    Chain: SRAM SX Eagle
    Crankset: SRAM SX Eagle
    Bottom Bracket: SRAM DUB, press fit

    Rims: Giant AM 29, tubeless ready sleeve-joint rim, 30mm inner width
    Hubs: Alloy, sealed
    Spokes: Stainless
    Tyres: [F] Maxxis Minion DHF, 29×2.5 WT, EXO/TR [R] Maxxis Aggressor, 29×2.5 WT, foldable, EXO/T

    Rims: Tubeless prepared, 2.5″ max tyre size, 32t max chainring size


    Frame Geometry (units in mm unless otherwise indicated)

    Frame S M L XL
    Seattube Length 380 430 465 495
    Seattube Angle (Degrees) 75.00 75.00 75.00 75.00
    Toptube Length 592 612 639 662
    Headtube Length 95 95 105 115
    Headtube Angle (Degrees) 66.00 66.00 66.00 66.00
    Fork Rake 44 44 44 44
    Trail 122 122 122 122
    Wheelbase 1154 1174 1203 1227
    Chainstay Length 435 435 435 435
    Bottom Bracket Drop 60 60 60 60
    Stack 622 622 631 640
    Reach 425 445 470 490
    Standover Height 730 745 765 790
    Stem Length 40 40 50 50
    Crank Length 165.0 170.0 170.0 170.0
    Wheel Size 29″ 29″ 29″ 29″

    Amber Glow

    Frame Size

    L, M, S, XL



    Model Year



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