ATX 3 Disc



What is my size? | Why pick up in store?

From parkways to paths and everything in between, this versatile bike can add some spice to your commute or fitness routine. With its flat handlebar, upright positioning and suspension fork, it’s cool and capable on-road or off-road.

With a rugged personality and a smooth riding style, ATX features the familiar flat-handlebar look of a traditional mountain bike. It has a lightweight yet durable ALUXX aluminum frame and a suspension fork with 100mm of smooth travel to soak up bumps. The wheel diameter varies based on bike size, with 26-inch wheels on smaller frames and 27.5 on larger ones. This tailors the bike’s handling to a rider’s height. Powerful brakes deliver confident handling in all types of weather, and integrated mounts make it easy to add racks or fenders to suit your riding adventures.

Key Performance Factors

All-terrain versatility

With a mountain bike style flat handlebar, and suspension fork, you can ride road or dirt with confidence.

Lightweight and durable

Frameset constructed with high-quality ALUXX aluminum.

Comfort and stability

Frame geometry puts the rider in a position that balances efficiency with stability on rough roads, paths or trails.

Download PDF

SizesS, M, L, XL
ColorsMetallic Black / Gray, Black / Pure Red
FrameALUXX-Grade Aluminum, disc
ForkSR Suntour M3030A. 26/27.5", 75mm travel, preload adjustable
HandlebarGiant Sport, 25.4, alloy
StemGiant Sport, alloy, 15-degree
SeatpostGiant Sport, 30.9x350
SaddleGiant custom
ShiftersShimano EF41
Front DerailleurShimano Tourney
Rear DerailleurShimano Tourney
BrakesTektro TKB-172, mechanical disc
Brake LeversShimano EF41
CassetteShimano MF-TZ500, 14x34
ChainKMC Z7
CranksetProwheel forged, 24/34/42
Bottom Bracketcartridge
RimsGiant GX03V 26/27.5, alloy, double wall, 21mm inner width
Hubsalloy, sealed bearing
Spokesstainless, 14g
TiresGiant QuickCross 27.5x2.1/26x2.1
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 our bikes are designed for best-in-class weight and ride quality.

All specifications and prices listed are subject to change without notice.

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.

XXS (26")   152 cm5’0” 5’0”/152 cm to 5’2”/157 cm 157 cm5’2”
XS (26")   157 cm5’2” 5’2”/157 cm to 5’4”/162 cm 162 cm5’4”
S (27.5")   162 cm5’4” 5’4”/162 cm to 5’7”/170 cm 170 cm5’7”
M (27.5")   170 cm5’7” 5’7”/170 cm to 5’9”/175 cm 175 cm5’9”
L (27.5")   175 cm5’9” 5’9”/175 cm to 6’1”/185 cm 185 cm6’1”
bike diagram
  XXS (26")XS (26")S (27.5")M (27.5")L (27.5")
ASeat Tube Length (mm) (inch)35013.838515.242016.545517.950519.9
BSeat Tube Angle (degrees)73.5°73.5°73.5°73.0°73.0°
CTop Tube Length (mm) (inch)55521.956522.257522.659023.261024
DHead Tube Length (mm) (inch)953.71054.1953.71104.31455.7
EHead Tube Angle (degrees)68.0°68.0°68.0°68.0°68.0°
FFork Rake (mm) (inch)421.7421.7421.7421.7421.7
GTrail (mm) (inch)92.53.692.53.692.53.692.53.692.53.6
HWheelbase (mm) (inch)106541.9107642.4108042.5109143111443.9
IChain Stay Length (mm) (inch)42016.542016.543517.143517.143517.1
JBottom Bracket Drop (mm) (inch)351.4351.4502502502
KStack (mm) (inch)55621.956522.258122.959523.462824.7
LReach (mm) (inch)39015.439815.740315.940816.141816.5
MStand Over Height (mm) (inch)68827.17102872128.474729.478931.1
NHandlebar Width (mm) (inch)62024.466026660266602670027.6
OStem Length (mm) (inch)502502702.8702.8903.5
PCrank Length (mm) (inch)1606.31656.51706.71706.71756.9
QWheel Size 26"26"27.5"27.5"27.5"



All specifications and prices listed are subject to change without notice.