WOOM 4 20''

Gear it up!
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.

Innovative frame design
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.

Child-specific hand-operated brakes
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.

Individually adjustable Vario stem
With the flexibility of the adjustable Vario stem, you can set not only the height of the bike but also its length to suit the rider. This means the bike grows with your child to ensure an optimal riding position at all times.

Cranks with a narrow Q-factor
The crank length and distance between the pedals are ergonomically adapted to fit children's bodies.

Twist shifter for intuitive shifting
The easy-to-operate microSHIFT twist shifter enables riders to shift intuitively through the seven gears with minimal hand strength required.

Practical quick-release skewer
Quick-release skewers make installing and removing the wheels from the frame a quick and easy job.

Practical quick-release seatpost clamp
The quick-release seatpost clamp offers a simple, quick and tool-free way to adjust the saddle height

Grippy, low-resistance tyres
Tyres have a major influence on how a bike rides. That is why for our bikes we have chosen tyres that can be used for a broad variety of terrain. Whether you child is riding on tarmac, gravel or dirt, our lightweight tyres will ensure maximum grip in any weather and on any surface, whether your child is riding straight or making turns.

Seven gears
The precise and easy-to-use gear-shifting makes riding more fun and enables children to go on longer rides while remaining simple enough for youngsters to understand. The microSHIFT system has seven gears in the back (11-28) designed for a wide range of gradients combined with a 28-tooth chain ring in the front.