Gearhead Pick
OFF AIR 6 26in Mountain Bike - Kids'
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The woom OFF AIR 6 is the most capable bike in the OFF line, with 90mm of tunable suspension
What Our Gearhead® Experts Are Saying:
"The step up to 90mm of travel with the F1RST fork is meaningful for a rider in the 10 to 14 range tackling real singletrack. Combined with the dropper-ready frame, 11-36T cassette, and 150mm cranks proportioned for this age group, the OFF AIR 6 is built for a teen who is treating trail riding seriously and needs a bike that can keep pace with where their skills are heading."
The OFF AIR 6's 6061-T6 aluminum frame uses the same butted and hydroformed construction as the OFF 6, with a dropper seatpost-ready seat tube and a low top tube for easy dismounts on more technical terrain. The F1RST hydraulic air suspension fork runs 90mm of travel on a pressure-adjustable air spring, with independent compression and rebound damping controls and a lockout for smooth surfaces. That level of adjustability matters at this size because a fork tuned to a teen rider's actual weight and riding style delivers meaningfully different trail feel than one left at a factory default. SRAM X5 trigger shifters index through 9 speeds backed by an 11-36T cassette and 28T narrow-wide chainring, the widest range in the OFF line. Promax hydraulic disc brakes run 160mm rotors front and rear with child-tuned lever reach. Schwalbe Rocket Ron 26 x 2.35" tires with ADDIX SPEED compound balance rolling efficiency with grip on loose terrain. The tubeless-compatible Alexrims wheelset runs 28 G14 triple-crossed spokes with aluminum nipples and thru axles front and rear. The 150mm child-specific cranks maintain a narrow Q-factor for the 10 to 14 age range, and the flip-flop stem adjusts handlebar height without additional hardware.
Heads up - We do our best to keep bike specs and images current, but occasional component changes can happen without warning-and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearheads are always here to help.
Details
- F1RST air fork with 90mm of travel handles the most demanding terrain in the OFF AIR line
- Air spring pressure is tunable to the rider's weight so the fork actually performs for a teen rider
- Adjustable compression and rebound let a parent dial in fork behavior to the trail conditions
- Lockout firms the fork for pavement or smooth hardpack where suspension adds drag
- Dropper seatpost-ready frame gives riders aged 10 to 14 a path to more technical capability
- 11-36T cassette covers the widest gear range in the OFF line for serious climbing
- 160mm rotors front and rear deliver proportional stopping power for bigger faster riders
- Tubeless-compatible Alexrims with triple-crossed spokes and thru axles for maximum stiffness
- Item #WOO000O
- Frame Material
- 6061 T6 aluminum
- Suspension
- hardtail
- Fork
- RST air-sprung suspension
- Front Travel
- 90mm
- Headset
- integrated 1 1/8 - 1in
- Shifters
- SRAM X5 trigger
- Rear Derailleur
- SRAM X5
- Crankset
- forged aluminum
- Chainring Sizes
- 28t
- Crank Arm Length
- 150mm
- Cassette Range
- 11 - 36t
- Brakeset
- Promax
- Brake Type
- hydraulic disc
- Rotors
- 160mm
- Handlebar
- aluminum
- Handlebar Width
- 665mm
- Grips
- silicone, lock-on
- Stem
- forged aluminum
- Stem Length
- 50mm
- Saddle
- ergonomic
- Seatpost
- aluminum
- Wheelset
- Alexrims
- Hubs
- aluminum
- Front Axle
- 15 x 100mm thru
- Rear Axle
- 12 x 135mm thru
- Tires
- Schwalbe Rocket Ron, ADDIX SPEED
- Tire Size
- 26 x 2.35in
- Pedals
- platform
- Claimed Weight
- 24.7lb (11.2kg)
- Activity
- trail
- Manufacturer Warranty
- 2 years
Built For Real Terrain Riding

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Built For Confident Riding

Lightweight Trail Frame
A lightweight aluminum frame keeps handling responsive and durable for confident riding on trails

Disc Brakes
Powerful disc brakes with adjustable levers provide consistent stopping power and control in mud, dirt, and wet conditions

9-Speed Drivetrain
A wide-range 9-speed drivetrain delivers smooth, precise shifting and reliable pedaling across climbs and descents

Grippy Trail Tires
Tubeless-ready tires balance low rolling resistance with strong grip for confident riding on loose and uneven terrain

Dropper-Ready Frame
Designed so riders can upgrade to a dropper post for more control and confidence on descents
Choose Your Ride

OFF Carbon Fork — Smooth Trails
A lightweight carbon fork keeps the bike efficient and responsive while reducing vibration on smoother trails

OFF AIR Suspension Fork — Rough Terrain
An adjustable suspension fork absorbs bumps and improves traction for more control on rough terrain
Find The Right Size



Geometry Chart

Size Chart

Complete Your Setup

Made To Grow With Every Ride
woom started in a Vienna garage when two bike‑obsessed dads reimagined kids’ bikes from the ground up, engineering superlight, child‑specific designs that turned first wobbles into real, joyful riding. Today their award‑winning lineup evolves with kids, moving from tiny first bikes to more advanced models that keep pace as skills, confidence, and ride ambitions grow.