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The Giant ATX 1 is a versatile fitness bike with a traditional mountain bike look. It is ready to tackle your daily commute and weekend adventures on forest trails and canal paths. 




Giant ATX 1 Mens 27.5 Hardtail Mountain Bike 2020 in Blue


Giant ATX 1 Mens 27.5 Hardtail Mountain Bike 2020 in Blue

Season : 2020

Brand : Giant

Code : 2012243VibrantBLU

Weight : 20KG

The Giant ATX 1 is a versatile recreation bike with the look of a traditional mountain bike.

The ATX 1 has a lightweight yet durable Aluxx aluminium 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 to maximise comfort and stability.

Powerful disc brakes deliver confident stopping power in all types of weather, and integrated mounts make it easy to add racks or fenders to suit your riding adventures. With its flat handlebar, upright positioning and suspension fork, its cool and capable on-road or off-road.

The Giant ATX 1 is prepared for wherever the roads, paths, or trails take you.

Key Features & Benefiits

  • All terrain versatility, allows you to ride on road or dirt with confidence.
  • Tektro hydraulic disc brakes, provide responsive stopping power in all weather.
  • SR Suntour XCT30 HLO suspension fork, ensures a comfortable and smooth ride.

Full Specification

  • Frame:  ALUXX-Grade Aluminium, disc
  • Fork:  SR Suntour XCT30 HLO 26/27.5 XCT HLO 26 ,100mm
  • Number of Gears:  27
  • Gear Shifters:  Shimano SL-M315
  • Chainset:  Prowheel forged
  • Chainrings:  24/34/42
  • Rear Cassette:  Shimano HG200, 12x32
  • Chain:  KMC Z8.3
  • Front Derailleur:  Shimano Tourney
  • Rear Derailleur:  Shimano Acera
  • Bottom Bracket:  Cartridge
  • Pedals:  Platform
  • Rims:  Giant GX03V, alloy, double wall, 21mm inner width
  • Front Hub:  Alloy, sealed bearing
  • Rear Hub:  Alloy, sealed bearing
  • Front Tyre:  Giant QuickCross, 27.5x2.1/26x2.1
  • Rear Tyre:  Giant QuickCross, 27.5x2.1/26x2.1
  • Brakes:  Tektro HDC M275/276 for 26"
  • Handlebars:  Giant Connect XC, 31.8
  • Stem:  Giant Sport, alloy, 10-degree
  • Saddle:  Giant custom
  • Seatpost:  Giant Sport, 30.9
  • Accessories:  N/A
  • Weight:  Not Available

Mountain Bike Sizing Guide

Mountain Bikes tend to use the T-Shirt sizing of S, M, L etc. or will have the seat tube measurement in INCHES. Why mountain bikes are inches and road bikes are CM who knows, but the part of the frame being measured is the same.

As a rule of thumb if you can identify your size as Medium on one brand, you should use that as a starting point on another brand too.

If you already own a medium mountain bike for example and are comfortable with the sizing, start there.

What is your height? Your suggested bicycle size
Feet/Inches Centimetres Suggested Size
4'10" - 5'2" 148cm - 158cm X-Small (14-15")
5'2" - 5'6" 158cm - 168cm Small (15.5-17")
5'6" - 5'10" 168cm - 178cm Medium (17.5-18")
5'10" - 6'1" 178cm - 185cm Large (18.5-20")
6'1" - 6'4" 185cm - 193cm X-Large (20.5-22")
6'4" - 6'6" 193cm - 198cm XX-Large (22.5"+)


If you need any more advice on bike sizing for mountain bikes please contact us and we can help you make the right choice.

Technical Information
    • Handlebar
      Giant Connect XC, 31.8
    • Pedals
    • Saddle
      Giant custom
    • Seatpost
      Giant Sport, 30.9
    • Stem
      Giant Sport, alloy, 10-degree
    • Brake Levers
      Tektro HDC M275/276 for 26"
    • Brakes
      Tektro HDC M275/276 for 26"
    • Cassette
      Shimano HG200, 12x32
    • Chain
      KMC Z8.3
    • Crankset
      Prowheel forged, 24/34/42
    • Front Derailleur
      Shimano Tourney
    • Rear Derailleur
      Shimano Acera
    • Shifters
      Shimano SL-M315 8 speed
    • Colours
      Gloss Vibrant Blue / Metallic Black
    • Fork
      SR Suntour XCT30 HLO 26/27.5 XCT HLO 26 ,100mm
    • Frame
      ALUXX-Grade Aluminum, disc
    • Shock
    • Sizes
      S, M, L, XL
    • Bottom Bracket
    • Hubs
      alloy, sealed bearing
    • Rims
      Giant GX03V, alloy, double wall, 21mm inner width
    • Spokes
      stainless, 14g
    • Tyres
      Giant QuickCross, 27.5x2.1/26x2.1
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