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Fathom 3

2018

GET YOUR DOSE OF SINGLETRACK ON A FUN HARDTAIL THAT PUTS YOU IN CONTROL. CLIMB, CORNER AND DESCEND WITH CONFIDENCE.

With its lightweight ALUXX SL aluminum frame and trail-friendly geometry, Fathom is a great choice for XC terrain and singletrack shredding. It blends the efficient ride quality of a classic hardtail with the can-do capabilities of an all-round off-roader. Engineered to optimize its 27.5 wheel platform, it has trail-friendly geometry including a more relaxed head angle made for a 120mm suspension fork. Tubeless ready.

  • ALUXX SL-grade aluminum frame
  • SR Suntour Raidon XC LO-R 120mm-travel fork
  • Shimano Deore/Alivio 2x9 speed drivetrain
  • Shimano M315 hydraulic disc brakes
  • Giant XC-2 Disc wheelset with Maxxis Ardent tubeless tyres
  • Colour: Yellow/Black/Blue

Techs & Features

ALUXX SL Aluminium Technology
OverDrive

Geometry

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.
  XSSMLXL
ASeat Tube Length (mm) (inch)37014.639015.444517.548018.953020.9
BSeat Tube Angle (degrees)73.5°73.5°73.5°73.5°73.5°
CTop Tube Length (mm) (inch)56522.25852360523.862524.664525.4
DHead Tube Length (mm) (inch)953.71003.91104.31254.91405.5
EHead Tube Angle (degrees)67.0°67.0°67.0°67.0°67.0°
FFork Rake (mm) (inch)421.7421.7421.7421.7421.7
GTrail (mm) (inch)1054.11054.11054.11054.11054.1
HWheelbase (mm) (inch)108942.9110943.7113144.5115345.4117446.2
IChain Stay Length (mm) (inch)42516.742516.742516.742516.742516.7
JBottom Bracket Drop (mm) (inch)451.8451.8451.8451.8451.8
KStack (mm) (inch)5842358823.159823.561124.162524.6
LReach (mm) (inch)39215.441116.242816.944417.546018.1
MStand Over Height (mm) (inch)69727.471428.174329.375329.678630.9
NHandlebar Width (mm) (inch)78030.778030.778030.778030.778030.7
OStem Length (mm) (inch)401.6502502602.4702.8
PCrank Length (mm) (inch)1706.71706.71756.91756.91756.9
QWheel Size 27.5"27.5"27.5"27.5"27.5"
Specs
  • Sizes
    S, M, L, XL
  • Colours
    Gloss Yellow / Gloss Black / Gloss Blue
  • Frame
    ALUXX SL-Grade Aluminum
  • Fork
    Suntour Raidon XC LO-R, 120mm Travel, Tapered Steerer, Rebound Adjust, QR
  • Handlebar
    Giant Connect Trail, 780mm
  • Stem
    Giant Connect
  • Seatpost
    NEW Giant Contact Switch, Dropper post
  • Saddle
    Giant Contact (Neutral)
  • Pedals
    MTB Caged, 9/16"
  • Shifters
    Shimano Alivio 18 speed
  • Front Derailleur
    Shimano Deore
  • Rear Derailleur
    Shimano Deore, Shadow
  • Brakes
    Shimano M315, [F] 180mm, [R] 160mm, Hydraulic Disc
  • Brake Levers
    Shimano M315
  • Cassette
    Shimano HG400, 12x36
  • Chain
    KMC X9
  • Crankset
    FSA Comet, 24/38
  • Bottom Bracket
    FSA Mega EXO PressFit
  • Rims
    Giant XC-2 Wheelset, 21mm Inner Width
  • Hubs
    [F]Giant Tracker Sport QR, Loose Ball [R] Giant Tracker Sport QR, Loose Ball
  • Spokes
    Sapim Leader
  • Tyres
    Maxxis Ardent 27.5x2.25", 60 TPI, TR, Tubeless
  • Extras
    Tyre Sealant
  • 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.

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.

Reviews

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.