woom ORIGINAL 4

An innovative and ultralight 20" children"s bike with fully adjustable Vario stem and 7 gears designed for all-round use by children aged 6 years and over

Size 20″

Weight 7.7 kg (16.9 lbs)

Top features

adjustable Vario stem. precise, smooth gear shifting, practical quick-release seatpost clamp, Ergogrips

Age 6 - 8 years Height 115 - 130 cm (3.8 - 4.3″)

The woom ORIGINAL 4 introduces children aged six years to the world of gear-shifting. The bike"s seven speeds in combination with the easy-to-operate twist shifter expand the bike"s range of use and increase the child"s mobility. Whether they want to ride their bikes into the woods or up hills – the new-found freedom of gears make longer adventures on two wheels child"s play

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 

A 7 speeds microSHIFT MS29 twist shifter microSHIFT M21SS rear derailleur

Fork

Light unicrown fork made out of aluminium 1″ steerer tube Generous trail angle for easy handling

Wheels

Ultralight SOOPA DOOPA HOOPS aluminium rims Aluminium hubs with sealed bearings and mount for woom click-on mudguards Quick-release skewers for easy installation and removal 20 lightweight, super strong stainless steel spokes, double-crossed spoking

Tyres 

A 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 Side protection to lean against walls

Handlebars

Wide, ergonomically adapted and lightweight aluminium bars for more control Sandblasted and anodised in black Width: 540 mm

Seatpost

Anodised aluminium seatpost with insertion marks that indicate the minimum insertion depth

Grips

woom Ergogrips, child-friendly thanks to small diameter Ergonomically formed gripping surface Handlebar ends with extra large diameter for greater protection Screw-in grips for secure attachment to handlebars

Drive

Lightweight, forged 110 mm aluminium cranks with narrow 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