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Fathom 1



  • ALUXX SL aluminium frame, tapered headtube and semi-internal cable routing
  • SR Suntour Axon 120mm suspension fork with 15mm Thru-Axle
  • Shimano SLX 1x11 drivetrain components
  • Shimano M365 hydraulic disc brakes
  • TranzX Dropper seatpost with internal cable routing
  • Color: black/blue

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SizesXS, S, M, L, XL
FrameALUXX SL-Grade Aluminium, Tapered Headtube, Semi-Internal Cable Routing
ForkSR Suntour Axon LO-RC, 120mm Travel, Alloy Steerer Tube, Low Speed Compression and Rebound Adjust, 15x100
HandlebarGiant Connect Trail, 730mm x 31.8mm
StemGiant Connect, 8-Degree Rise
SeatpostTranzX YSP-15 Dropper Post, internal Routing, 30.9
SaddleGiant Connect, Upright
PedalsMTB Caged, 9/16"
ShiftersShimano SLX 1x11
Rear DerailleurShimano SLX 1x11
BrakesShimano BR-M365 [F] 180mm [R] 160mm rotors
Brake LeversShimano M365
CassetteShimano SLX 11-42, 11s
ChainShimano HG601
CranksetShimano SLX 1x11, 30T
Bottom BracketShimano Press Fit
RimsGiant XC-1 27.5 Wheelset
Hubs[F] Giant Tracker 15x100, Sealed Bearing [R] Giant Tracker Sport QR, Loose Ball
SpokesStainless, 14G
TiresMaxxis Ardent 27.5x2.25", 60 TPI Folding
WeightThe 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 Giant bikes are designed for best-in-class weight and ride quality.

Sizing Guide and Geometry

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.

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)73028,773028,773028,773028,773028,7
OStem Length (mm) (inch)702,8803,1903,51003,91104,3
PCrank Length (mm) (inch)1706,71706,71756,91756,91756,9
QWheel Size 27.5"27.5"27.5"27.5"27.5"

All specifications listed are subject to change without notice.