The woom 4 introduces children aged six years to the world of gear-shifting. The bike’s eight 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.
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The two V-Brakes are easy to operate thanks to their ergonomically adapted brake levers with reach adjustability. The levers require only little strength to bring the bike to a safe halt.
The crank length and distance between the pedals are ergonomically adapted to fit children’s bodies. This results in an optimum stance and very natural movements. And thanks to the chain guard ring those days of getting your trouser leg caught are over!
The superlight aluminium frame is the heart of the bike and ensures a fun and safe riding experience. Its cleverly designed age-specific geometry offers good control over the bike and gives young riders maximum safety while exploring new horizons.
The easy-to-operate SRAM twist shifter enables riders to shift intuitively through the eight gears with minimal hand strength required.
|Frame||Frame material: light, high-quality AA 6061 aluminium with butted tubes|
Agile yet easy handling: low entry, very low sitting position and forgiving steering geometry to provide good control and more riding fun
|Fork||Light unicrown fork made out of aluminium|
Generous trail angle for easy handling
|Headset||Fully-integrated 1″ headset|
Sealed industrial bearings
Integrated ahead clamp
|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
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
|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
|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
|Handlebars||Wide, ergonomically adapted and lightweight aluminium bars for more control|
Sandblasted and black anodised
Width: 540 mm
|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
SRAM X4 twist shifter
SRAM X4 rear derailleur
|Saddle||Ergonomically designed to fit children’s pelvis|
Side protection to lean against walls
|Seatpost||Anodised aluminium seatpost with insertion marks that indicate the minimum insertion depth|
|Seatpost clamp||Made from aluminium|
Extra-long quick-release skewer, easy to operate requiring only little strength
No risk of turning and/or twisting
|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
|Shipping dimensions||104 x 55 x 22 cm|
|Weight||7.7 kg / 16.9 lbs (without pedals)|
|Weight limit||70 kg (155 lbs)|