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Giant ATX 3

Giant ATX 3
  • Color: Black/Blue/Gray
  • Color: Pure Red/Black/Charcoal
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Navigate urban streets, cruise the bike path, or explore forest trails. Part mountain bike, with its flat handlebar and plush suspension bike, and part city bike, ATX is at home in any environment.

Closely related to Giant off-road bikes, ATX features the familiar flat-handlebar and 100mm suspension fork of a traditional XC mountain bike. A lightweight ALUXX aluminum frame, engineered with comfortable geometry for challenging terrain, adds to its rugged personality. It also uses size-specific wheel diameters—smaller size bikes use 26-inch wheels, while larger sizes use 27.5. This tailors the bike’s handling to every rider’s size and height. Powerful disc brake technology gives you confident handling in all weather or riding conditions, and integrated mounts let you easily add racks or fenders to suit your riding adventures.


Frame ALUXX-Grade Aluminum
Fork SR Suntour XCE 26/27.5, 100mm travel
Rims/Wheels Giant CH17 26/27.5, 6061 aluminum
Hubs Joytech S01 alloy thread type, sealed ball bearing, 32H
Spokes Stainless, 14G
Tires Giant Quickcross 27.5x2.1" / 26x2.1"
Crankset ProWheel forged
Chainrings 24/34/42
Bottom Bracket Cartridge
Chain KMC Z51
Front Derailleur Shimano Tourney
Rear Derailleur Shimano Tourney
Cassette/Rear Cogs Shimano TZ500, 14-34, 7-Speed
Shifters Shimano EF41, 3x7
Handlebars Giant Sport, 25.4, alloy
Stem Giant Sport alloy, 15-degree
Brake Levers Shimano EF41
Brakes MTB alloy linear pull
Saddle Giant Connect (upright)
Seat Post Giant Sport, 30.9x350mm

* Subject to change without notice.

Part Numbers

Option UPC MPN
Black/Blue/Gray / XX-Small / 26-inch 4712878399914 90050462
Black/Blue/Gray / X-Small / 26-inch 4712878399921 90050463
Black/Blue/Gray / Small / 27.5-inch 4712878399983 90050264
Black/Blue/Gray / Medium / 27.5-inch 4712878399990 90050265
Black/Blue/Gray / Large / 27.5-inch 4712878400009 90050266
Black/Blue/Gray / X-Large / 27.5-inch 4712878400016 90050267
Pure Red/Black/Charcoal / XX-Small / 26-inch 4712878399884 90050452
Pure Red/Black/Charcoal / X-Small / 26-inch 4712878399891 90050453
Pure Red/Black/Charcoal / Small / 27.5-inch 4712878399945 90050254
Pure Red/Black/Charcoal / Medium / 27.5-inch 4712878399952 90050255
Pure Red/Black/Charcoal / Large / 27.5-inch 4712878399969 90050256
Pure Red/Black/Charcoal / X-Large / 27.5-inch 4712878399976 90050257