Out of stock

Woom 4 - Green

The Woom 4 is one of lightest 20″ wheel children’s bikes on the market.

With its lightweight aluminium frame and forks, child-friendly geometry and age appropriate components, all go to make this one of the easiest and most fun bikes of its size.

✓ The bike is suitable for a rider with an inside leg measurement of 52 to 67cm.
✓ 7.7kg. lightweight aluminium frame
✓ Child-friendly geometry and age appropriate components
✓ The bike would suit a child aged around 6 to 8 years old.
✓ High quality Kenda tyres

 

 

 

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Details

  • Lightweight - 7.7kg
  • Child-specific frame geometry
  • Lightweight brake levers
  • 20" Wheels

Tech Spec

Frame
  • Frame material: light, high-quality AA 6061 aluminium with butted tubes
  • 20″ wheels
  • Agile yet easy handling: low entry, very low sitting position and forgiving steering geometry to provide good control and more riding fun
Gears
  • 8 speeds
  • SRAM X4 twist shifter
  • SRAM X4 rear derailleur
Fork
  • Light unicrown fork made out of aluminium
  • 1″ shaft
  • Generous trail angle for easy handling
Wheels
  • Ultralight SOOPA DOOPA HOOPS aluminium rims
  • Aluminium hubs with sealed bearings and mount for woom click-on fenders
  • Quick-release skewers for easy installation and removal
  • 20 lightweight, super strong stainless steel spokes, double-crossed spoking
Headset
  • Fully-integrated 1″ headset
  • Sealed industrial bearings
  • Integrated ahead clamp
Tyres
  • 20 x 1.4″ Schwalbe Little Joe folding tyres – woom edition
  • High-quality, lightweight tyres for good shock absorption, low rolling resistance and maximum grip
  • Car-type valves for easy filling at any service station
  • Reflective stripes on the sides of the tyres for optimal visibility even in low-light conditions. 
Stem
  • Lightweight stem made out of forged aluminium
  • Adjustable height and reach mean the Vario stem offers an optimal riding position as the child grows.
  • Handlebars attached via two clamps and fixed with two 5 mm hex bolts
Saddle
  • Ergonomically designed to fit children's pelvis 
  • Non-toxic 
  • Side protection to lean against walls
Handlebars
  • Wide, ergonomically adapted and lightweight aluminium bars for more control
  • Sandblasted and black anodised
  • Width: 540 mm
Seatpost
  • Anodised aluminium seatpost with insertion marks that indicate the minimum insertion depth
Grips
  • woom Ergogrip – child-friendly thanks to small diameter
  • Ergonomically formed gripping surface, non-toxic
  • Handlebar ends with extra large diameter for greater protection
  • Screw-in grips for secure attachment to handlebars
Seatpost clamp
  • Made from aluminium
  • Extra-long quick-release skewer, easy to operate requiring only little strength
  • No risk of turning and/or twisting
Drive
  • Lightweight, forged 110 mm aluminium cranks with narrow tread (Q-factor)
  • Narrow-wide chainring with 28 teeth
  • Cassette with 11-28 teeth
  • Narrow, flat platform plastic pedals
  • Sealed cartridge
Brakes
  • Two independently operated V-brakes with braking power adapted for children
  • Ergonomically adapted brake lever with reach adjustability
  • High-quality Jagwire cables for reduced friction and smooth performance
Enclosed tools
  • 15 mm spanner for pedals
  • 5 mm hex key for stem 
Weight
  • 7.7 kg / 16.9 lbs (without pedals)

    • Details

      • Lightweight - 7.7kg
      • Child-specific frame geometry
      • Lightweight brake levers
      • 20" Wheels

    • Tech Spec

      Frame
      • Frame material: light, high-quality AA 6061 aluminium with butted tubes
      • 20″ wheels
      • Agile yet easy handling: low entry, very low sitting position and forgiving steering geometry to provide good control and more riding fun
      Gears
      • 8 speeds
      • SRAM X4 twist shifter
      • SRAM X4 rear derailleur
      Fork
      • Light unicrown fork made out of aluminium
      • 1″ shaft
      • Generous trail angle for easy handling
      Wheels
      • Ultralight SOOPA DOOPA HOOPS aluminium rims
      • Aluminium hubs with sealed bearings and mount for woom click-on fenders
      • Quick-release skewers for easy installation and removal
      • 20 lightweight, super strong stainless steel spokes, double-crossed spoking
      Headset
      • Fully-integrated 1″ headset
      • Sealed industrial bearings
      • Integrated ahead clamp
      Tyres
      • 20 x 1.4″ Schwalbe Little Joe folding tyres – woom edition
      • High-quality, lightweight tyres for good shock absorption, low rolling resistance and maximum grip
      • Car-type valves for easy filling at any service station
      • Reflective stripes on the sides of the tyres for optimal visibility even in low-light conditions. 
      Stem
      • Lightweight stem made out of forged aluminium
      • Adjustable height and reach mean the Vario stem offers an optimal riding position as the child grows.
      • Handlebars attached via two clamps and fixed with two 5 mm hex bolts
      Saddle
      • Ergonomically designed to fit children's pelvis 
      • Non-toxic 
      • Side protection to lean against walls
      Handlebars
      • Wide, ergonomically adapted and lightweight aluminium bars for more control
      • Sandblasted and black anodised
      • Width: 540 mm
      Seatpost
      • Anodised aluminium seatpost with insertion marks that indicate the minimum insertion depth
      Grips
      • woom Ergogrip – child-friendly thanks to small diameter
      • Ergonomically formed gripping surface, non-toxic
      • Handlebar ends with extra large diameter for greater protection
      • Screw-in grips for secure attachment to handlebars
      Seatpost clamp
      • Made from aluminium
      • Extra-long quick-release skewer, easy to operate requiring only little strength
      • No risk of turning and/or twisting
      Drive
      • Lightweight, forged 110 mm aluminium cranks with narrow tread (Q-factor)
      • Narrow-wide chainring with 28 teeth
      • Cassette with 11-28 teeth
      • Narrow, flat platform plastic pedals
      • Sealed cartridge
      Brakes
      • Two independently operated V-brakes with braking power adapted for children
      • Ergonomically adapted brake lever with reach adjustability
      • High-quality Jagwire cables for reduced friction and smooth performance
      Enclosed tools
      • 15 mm spanner for pedals
      • 5 mm hex key for stem 
      Weight
      • 7.7 kg / 16.9 lbs (without pedals)