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The woom OFF AIR 5 is a premium lightweight 24" mountain bike built for adventurous young riders who want to tackle more challenging trails with confidence. Featuring an adjustable RST air-sprung suspension fork, powerful Promax hydraulic disc brakes, and a reliable SRAM X5 1x9 drivetrain, it delivers exceptional comfort, control, and capability for everything from trail centre laps to all-day off-road adventures.
The woom OFF AIR 5 is a premium lightweight 24" mountain bike built for adventurous young riders who want to tackle more challenging trails with confidence. Featuring an adjustable RST air-sprung suspension fork, powerful Promax hydraulic disc brakes, and a reliable SRAM X5 1x9 drivetrain, it delivers exceptional comfort, control, and capability for everything from trail centre laps to all-day off-road adventures.
Woom

woom OFF AIR 5 - 24 inch Lightweight Suspension Mountain Bike - Black

£1,005.00
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woom OFF AIR 5 - 24 inch Lightweight Suspension Mountain Bike - Black

Season:2027

Brand:Woom

Code:100017-0063-8001

The woom OFF AIR 5 is designed for young riders whose ambitions extend well beyond local paths and easy trails. Combining lightweight performance with trail-ready components, it provides the confidence and capability needed to take on rougher terrain, longer rides, and more technical mountain bike adventures.

At the core of the OFF AIR 5 is a lightweight aluminium frame engineered specifically for children. Rather than simply scaling down an adult bike, woom has carefully developed the geometry around the needs of younger riders, resulting in a bike that feels stable on descents, efficient on climbs, and remarkably easy to handle across a wide range of terrain.

The most significant feature is the RST air-sprung suspension fork, designed to deliver genuine trail performance for lighter riders. Unlike many children's mountain bikes that use basic coil-sprung forks, the air fork can be precisely tuned to the rider's weight, providing smoother suspension action, improved traction, and increased comfort. This allows the bike to absorb roots, rocks, and trail chatter more effectively, helping riders maintain control and build confidence on technical terrain.

The SRAM X5 1x9 drivetrain offers a wide gear range while keeping operation simple and intuitive. The single-chainring setup eliminates the complexity of a front derailleur, making gear selection straightforward and reliable. Whether climbing steep forest tracks, navigating rolling singletrack, or picking up speed on flowing descents, the drivetrain provides the gearing needed for every adventure.

Braking duties are handled by Promax hydraulic disc brakes, delivering powerful and predictable stopping performance in all conditions. Hydraulic technology provides excellent modulation while requiring less hand strength than traditional braking systems, helping younger riders stay in complete control on steep descents and challenging trails.

The lightweight 24" wheels strike an ideal balance between agility and stability. Large enough to roll smoothly over obstacles yet nimble enough for developing riders, they provide excellent grip and confidence across gravel tracks, woodland trails, trail centres, and natural singletrack.

As with every woom bike, rider comfort remains a priority. An ergonomic saddle, child-specific grips, and carefully proportioned handlebars create a comfortable riding position that encourages longer adventures while maintaining complete control over technical terrain.

The result is a genuine performance mountain bike that allows young riders to explore tougher trails, ride further with family and friends, and continue building their off-road skills with confidence.


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
  • 24" 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 efficient climbing
  • Powerful all-weather braking performance
  • Stable yet agile trail handling
  • Ideal for trail centres, woodland trails, gravel riding, and family adventures
Technical Information
  • Frame
  • Sizes
    One Size
  • Colours
    Black, Copper
  • Frame
    Lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
  • Forks and Shocks
  • Fork
    RST air-sprung suspension fork / 80 mm travel
  • Rear Shock
    N/A
  • eSystem
  • Motor
    N/A
  • Controller
    N/A
  • Display
    N/A
  • Battery Type
    N/A
  • Battery Integration
    N/A
  • Connectivity
    N/A
  • Charger
    N/A
  • Drivetrain and Brakes
  • Brake System
    Promax hydraulic disc brakes
  • Rear Derailleur
    SRAM X5
  • Front Derailleur
    N/A
  • Shifters
    SRAM X5
  • Bottom Bracket
    N/A
  • Crankset
    Lightweight, forged 130 mm aluminum cranks with narrow tread (Q-factor) / Narrow-wide chainring with 28 teeth
  • Cassette
    11–34 teeth
  • Chain
    N/A
  • Cockpit
  • Handlebar
    Wide, ergonomically adapted and lightweight aluminum bars
  • Stem
    Forged aluminum +/-15° flip-flop design to adjust handlebar height
  • Grips
    Ergonomic design Slim, child-specific diameter
  • Headset
    Fully integrated 1 1/8″ – 1″ headset
  • Wheels
  • Front Hub
    Lightweight aluminum hubs with sealed bearings
  • Rear Hub
    Lightweight aluminum hubs with sealed bearings
  • Rims
    Lightweight, tubeless-ready aluminum rims from Alexrims
  • Front Tyre
    24 x 2.35" Schwalbe Rocket Ron
  • Rear Tyre
    24 x 2.35" Schwalbe Rocket Ron
  • Max Tyre Clearance
  • Finishing Kit
  • Seatpost
    Anodized aluminum seatpost
  • Saddle
    MTB-specific saddle Ergonomically designed to fit children's pelvises
  • Pedals
    Slim, plastic platform pedals
  • Extras
  • Kickstand
    N/A
  • Lighting
    N/A
  • Lock
    N/A
  • Carrier
    N/A
  • Mudguards
    N/A
  • Extras
    N/A
  • Please Note:
    Every effort has been made to ensure accuracy throughout this website. However, manufacturers reserves the right to change bike specifications, features, prices and colours without prior notice. If you would like to check the specification of a bike before purchasing, please call one of our stores.
Sizing Information

Size Guide

Frame SizeRider height (cm)
One Size128 - 145

Frame Geometry


One Size
ATyre / Wheel Size24"
BMinimum Cockpit / Handlebar Height (mm)920
CFork Rake69°
DTop Tube Length (mm)525
EWheelbase (mm)970
FSeat Tube Angle70°
GMinimum Saddle Height (mm)705
Maximum Seat Height (mm)855
IHandlebar Adjustment+/-15° flip-flop stem

Professional Opinion

The woom OFF AIR 5 hits a sweet spot for young riders who are becoming serious about mountain biking. At this stage, riders are often venturing onto more technical trails and riding greater distances, making the addition of an adjustable air-sprung suspension fork a genuinely worthwhile upgrade over a rigid mountain bike.

What sets the OFF AIR 5 apart is how effectively it balances performance and weight. Many children's full-featured mountain bikes become unnecessarily heavy once suspension is added, but woom has done an excellent job of maintaining the lightweight feel that makes its bikes so enjoyable to ride. The result is a bike that climbs efficiently, accelerates easily, and remains manageable for smaller riders.

The combination of the RST air fork, SRAM X5 1x9 gearing, and Promax hydraulic disc brakes creates a specification that would look at home on many quality adult hardtails. It provides the comfort, traction, and control needed to tackle increasingly technical terrain while remaining approachable and confidence-inspiring.

For families who regularly visit trail centres, ride woodland singletrack, or enjoy off-road adventures together, the OFF AIR 5 is one of the most capable and well-rounded 24" mountain bikes available. It delivers genuine trail performance in a package specifically designed for younger riders.

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