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ARX 20

£389

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Ships from warehouse and will be available for pick-up in about 7-10 business days

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Why should lightweight performance be limited to adult bikes? This sleek little aluminium flyer is the lightest in its category, designed with stable geometry and 20-inch wheels that make it easy for young riders to get going.

Most youth bikes are constructed with heavier frames and materials, but we designed the ARX to be lighter, quicker, and more fun for young riders. Fact is, smaller riders can benefit even more from a lighter bike. With its ALUXX aluminium frame and fork, ARX is the lightest bike in its category—which makes it more fun to ride. The frame features a lower center of gravity for added stability. It comes in three different wheel size choices for different heights, and has versatile tyres that can handle rough roads, paths and even some dirt. The frame is fitted with lightweight components that are sized specifically for young riders, including cranksets and cockpit components for various wheel options.

Key Performance Factors

Lightweight

High-quality ALUXX aluminium construction delivers exceptional frame performance with lightest weight in its category.

Youth-specific features

20-inch wheels and lightweight components offer better control and safe, ergonomic positioning and fit.

Versatility

Versatile tyres can be ridden on roads, gravel or dirt.

Techs & Features

ALUXX Aluminium Technology

Sizing Guide and Geometry

Sizing to be used as a reference only. Please check with a local authorized dealer to determine the correct size.
Available sizes may vary from country to country.

Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
  • One Size
      120 cm3’11”  to 140 cm4’7”
bike diagram with measurements referenced in table that follows
Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
  One Size
BSeat Tube Angle (degrees)72.0°
CTop Tube Length (mm) (inch)45017.7
DHead Tube Length (mm) (inch)1204.7
EHead Tube Angle (degrees)69.0°
HWheelbase (mm) (inch)88634.9
IChain Stay Length (mm) (inch)37514.8
KStack (mm) (inch)40315.9
LReach (mm) (inch)31912.6
MStand Over Height (mm) (inch)50920
PCrank Length (mm) (inch)1275
Specs
  • Sizes
    one size
  • Colours
    Lemon Yellow/Black, Pure Red/Black, Orange/ Black, Blue/Black, Neon Green/Black, Purple
  • Frame
    ALUXX-Grade Aluminum
  • Fork
    alloy
  • Shock
    N/A
  • Handlebar
    Giant Youth, 500mm width
  • Stem
    forged, alloy Ahead
  • Seatpost
    Giant Sport, 27.2
  • Saddle
    Giant Grow Technology
  • Pedals
    platform
  • Shifters
    Shimano Altus
  • Front Derailleur
    N/A
  • Rear Derailleur
    Shimano Altus
  • Brakes
    alloy, linear pull
  • Brake Levers
    alloy, junior MTB
  • Cassette
    Shimano HG200, 12x32
  • Chain
    KMC Z8.3
  • Crankset
    alloy, forged, three-piece, 32t, 127mm
  • Bottom Bracket
    sealed cartridge
  • Rims
    Giant Kids 20", alloy
  • Hubs
    alloy, F 28h QR, R 28h
  • Spokes
    stainless, 14g
  • Tyres
    Innova IB-3010, 20x1.5
  • Weight
    The 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.

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.

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