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Giant ATX 3 (GE)


Cross Country

Colour / Metallic Black / Gray, Gray / Neon Yellow

Size / XXS, XS, S, M, L, XL

At a glance

The 2020 Giant ATX 3 (GE) is an Cross Country mountain bike. It sports 27.5" wheels, comes in a range of sizes, including XXS, XS, S, M, L, XL, has SR Suntour suspension and a Shimano drivetrain. The bike is part of Giant's ATX range of mountain bikes.

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.

Where To Buy


  • Frame
    ALUXX-Grade Aluminum
  • Fork
    SR Suntour XCE 26"/27.5", 100mm
  • Hubs
    alloy, sealed bearing
  • Wheels
    Giant GX06 26/27.5, alloy, double wall, 19mm inner width
  • Wheel Size
  • Spokes
    stainless, 14g
  • Tires
    Giant QuickCross 27.5x2.1/26x2.1
  • Chain
    KMC Z7
  • Crank
    Prowheel forged, 24/34/42
  • Bottom Bracket
  • Front Derailleur
    Shimano Tourney
  • Rear Derailleur
    Shimano Tourney
  • Shifters
    Shimano EF41
  • Cassette
    Shimano MF-TZ500, 14x34
  • Brakeset
    MTB alloy linear pull
  • Handlebar
    Giant Sport, 25.4, alloy
  • Saddle
    Giant custom
  • Seatpost
    Giant Sport, 30.9x350
  • Stem
    Giant Sport, alloy, 15-degree


Q: What size wheels does the 2020 Giant ATX 3 (GE) have?

The 2020 Giant ATX 3 (GE) has 27.5" wheels.

Q: What size 2020 Giant ATX 3 (GE) should I get?

The 2020 Giant ATX 3 (GE) comes in sizes XXS, XS, S, M, L, XL. After measuring your height, use the below size chart to find the correct size Giant ATX 3 (GE) for your height.

Rider Height (cm)Rider Height (in)Frame Size
148cm - 158cm4'10" - 5'2"XS
158cm - 168cm5'2" - 5'6"S
168cm - 178cm5'6" - 5' 10"M
178cm - 185cm5'10" - 6'1"L
185cm - 193cm6'1" - 6'4"XL
193cm - 198cm6'4" - 6'6"XXL