The woom OFF AIR 4 is purpose-built for young mountain bikers who want to ride beyond gravel paths and venture onto genuine off-road terrain. Combining a lightweight frame with premium suspension and trail-ready components, it gives young riders the confidence to tackle roots, rocks, uneven trails, and challenging descents while continuing to develop their skills.
At the heart of the OFF AIR 4 is a lightweight aluminium frame designed specifically around the proportions and riding characteristics of children. Every aspect of the geometry has been carefully refined to provide predictable handling, excellent stability, and efficient pedalling performance, creating a bike that feels comfortable and confidence-inspiring whether climbing, descending, or navigating technical singletrack.
The biggest upgrade over the standard OFF 4 is the addition of an RST air-sprung suspension fork. Unlike heavier coil-sprung forks often found on children's mountain bikes, the air fork can be precisely adjusted to suit lighter riders, delivering superior small-bump sensitivity and greater control across rough terrain. The result is a more comfortable ride, improved traction, and increased confidence when tackling challenging trails.
The SRAM X5 1x9 drivetrain provides a wide gear range in a simple and easy-to-use package. The single-chainring setup eliminates the complexity of a front derailleur, making shifting more intuitive while still offering plenty of gears for steep climbs and flowing descents. This allows young riders to focus on the trail rather than worrying about complicated gear changes.
Powerful Promax hydraulic disc brakes provide exceptional stopping performance in all weather conditions. Requiring less hand strength than traditional braking systems, they allow young riders to modulate their speed confidently on technical sections and steep descents while maintaining complete control.
The lightweight 20" wheels are paired with off-road tyres that deliver excellent grip and stability across a wide range of trail conditions. Whether riding woodland paths, trail centre loops, gravel tracks, or natural singletrack, the OFF AIR 4 provides the traction and confidence needed to push riding skills to the next level.
As expected from woom, every contact point has been carefully selected for younger riders. Child-specific grips, an ergonomic saddle, and perfectly proportioned handlebars ensure maximum comfort and control, helping riders stay comfortable throughout longer adventures.
The result is a highly capable mountain bike that introduces young riders to the benefits of premium suspension technology while maintaining the lightweight handling characteristics that have made the woom OFF series so highly regarded.
Key Features
- Lightweight child-specific aluminium frame
- RST air-sprung suspension fork
- Adjustable suspension tuned for lighter riders
- SRAM X5 1x9 drivetrain
- Wide-range cassette for climbing and descending
- Promax hydraulic disc brakes
- 20" wheels with lightweight alloy rims
- Child-specific mountain bike geometry
- Off-road tyres for enhanced grip and traction
- Ergonomic saddle and child-specific grips
- Lightweight construction for improved handling
- Powerful all-weather braking performance
- Confidence-inspiring trail handling
- Ideal for trail centres, woodland trails, gravel routes, and family adventures