An ultralight and durable 20" mountain bike with a suspension fork, 9 gears, and disc brakes designed for children aged 6 years and over.
Get out and explore
The woom OFF AIR 4 gives children aged six years and older a superlight and durable mountain bike for their first go on the pump track and easy cruising through forests and fields. The kink in the top tube makes it easy to get on and off quickly in any situation, thereby giving kids greater safety out and about on the trails. The perfect introduction to mountain biking.
Comfort on the bumpiest terrain is a given thanks to the high-quality suspension fork, which can be adjusted to the Rider’s weight. With adjustable compression and rebound damping, the fork can be tuned for the terrain and the day’s conditions, plus its lock-out function is a bonus on climbs or flat roads. Whether conquering long days on the trail or just taking on an off-road shortcut, good times are right around the bend!
Lightweight Aluminum Frame
The superlight aluminum frame with butted hydroformed tubes has a long wheelbase, sporty geometry, and a slack steering angle. The kink in the top tube makes it easy to dismount quickly in any situation.
Innovative Braking System
With their excellent modulation combined with special brake levers designed for children's hands, the disc brakes increase safety and control in all situations, including on rough terrain and in wet conditions.
Made from forged aluminum, the specially developed stem guarantees maximum stiffness with minimal weight. Thanks to its flip-flop design it can be turned over and mounted upside down to adjust the handlebar height.
Ergonomic Contact Points
Comfort is very important to the riding experience and that's why the contact points on our bike are made specifically for kids. Our saddle is designed to accommodate the anatomy and the biomechanics of a young child. Our grips are ergonomically designed for kids’ hands. The pedals are durable, reflective, and slip-resistant.
The precise and easy-to-operate gear system allows smooth shifting. The SRAM X5 system has nine gears suitable for a wide range of gradients thanks to 28 teeth in the front and an 11-32 cassette in the back.
The high-quality Schwalbe mountain bike tires with ADDIX SPEED rubber compound offer an ideal combination of low rolling resistance, maximum grip, good shock absorption, and excellent durability.
The easy-to-use SRAM trigger shifter allows Riders to shift smoothly and reliably through the nine gears using their thumb and index finger.
Personalize your bike! Every woom OFF is delivered complete with a set of stickers in four colors. Place them on your rims and top tube to customize your bike!
In this video, you'll find comprehensive instructions on assembling your woom OFF AIR 4.
You can find more information in our service and help area.