Woom OFF AIR 4 Terra Coppa
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Woom OFF AIR 4 Terra Coppa is backordered and will ship as soon as it is back in stock.
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Woom OFF AIR 4 Terra Coppa
The ultralight and durable 20″ mountain bike with front suspension, 9 gears and disc brakes designed for children aged 6 years and over.
Welcome to the world of flow!
The next-generation woom OFF AIR 4 is an ultralight, durable hardtail mountain bike with serious all-terrain capabilities for kids aged six and up. With high-quality front suspension and powerful disc brakes, it teams maximum comfort with full control for the ultimate performance on XC trails, gravel tracks, tarmacked lanes and beyond.
Premium suspension fork
Comfort and control on the bumpiest terrain is a given thanks to the fully tunable suspension fork, which can be adjusted to the rider’s weight. With adjustable compression and rebound damping, the fork can be tuned precisely for any terrain or conditions and features a lock-out function that basically switches off the suspension when not needed – meaning full fun on the trails and a faster ride up hills or on the way home!
Ergonomic contact points
The age-appropriate MTB saddle and ergonomically profiled handlebar grips add comfort, while the hard-wearing platform pedals with metal pins provide the necessary grip for all-terrain riding.
Precise shifting
The precise and intuitive SRAM X5 drivetrain has nine gears and a wide gear range thanks to the 28-tooth chainring up front and an 11–32 cassette at the rear. The easy-to-operate trigger shifter operates smoothly and reliably to make light work for children’s thumbs.
Reliable disc brakes
Easy-to-modulate disc brakes are teamed with child-specific, reach-adjustable brake levers to provide maximum stopping power and control in every situation including steep slopes and wet conditions.
Grippy tubeless-ready MTB tyres
High-quality Schwalbe mountain bike tyres combine low rolling resistance with superior grip and proven durability. With Tubeless Easy technology and tubeless-ready rims, it’s a straightforward transition to go tubeless and benefit from added comfort and grip.
Lightweight flip-flop stem
Specially developed from forged aluminium, this stem pairs the ultimate stiffness with the lowest possible weight. Thanks to its flip-flop design, there’s the option to raise the height of the bars simply by inverting it.
Frame
- Frame material: lightweight, high-quality 6061 T6 aluminium with butted and hydroformed tubes
- 20″ wheels
- Responsive handling: an easy-access low top tube, low centre of gravity and long wheelbase provide good balance and make for a fun, safe riding experience
- Hard-wearing plastic chainstay protector
Gears
- 9 speeds
- SRAM X5 trigger shifter
- SRAM X5 rear derailleur
Fork
- Aluminium air-sprung suspension fork from RST
- Rebound and compression damping adjustment, plus lockout function
- 60 mm travel
- 1 1/8″ – 1″ baby taper steerer tube
- 100 x 15 mm through-axle
- Post mount standard disc brake mounts
Wheels
- Lightweight, tubeless-ready aluminium rims from Alexrims
- Size: 20″
- Aluminium hubs with sealed industrial-grade bearings
- Through-axles for maximum torsional strength (100 x 15 mm front/135 x 12 mm rear)
- 20 spokes, double-crossed spoking
- Aluminium nipples
Headset
- Fully integrated 1 1/8"-1" headset
- Sealed industrial-grade bearings
Tyres
- 20 x 2.25" Schwalbe Rocket Ron
- ADDIX SPEED rubber compound and Tubeless Easy technology
- Tubeless-ready
- Presta valves
Stem
- Forged aluminium
- CNC-machined
- Handlebars attached via two clamps
- +/-15° flip-flop design to adjust handlebar height
- Length: 50 mm
Saddle
- MTB-specific saddle
- Trail-ready design
- Ergonomic and age-appropriate design to fit the rider's pelvis
- Abrasion-resistant side panels for when leaned against walls
Handlebars
- Wide, lightweight aluminium bars with tapered ends
- Width: 570 mm
- Rise: 20 mm
Seatpost
- 27.2 x 250 mm
- Anodised aluminium seatpost with minimum insertion mark
Grips
- Child-friendly thanks to small diameter
- Ultra comfortable with reinforced contact surface for palms
- 100% silicone for maximum grip
- Lock-on design to eliminate twisting
Seatpost Clamp
- Quick-release aluminium seatpost clamp
- Extra-long quick-release lever, easy to operate requiring only minimal strength
- No risk of turning and/or twisting
Drivetrain
- Lightweight forged aluminium 110 mm cranks with narrow Q-factor
- Narrow-wide chainring with 28 teeth
- 11–32T cassette
- Platform pedals made from fibre-reinforced nylon with metal pins for added grip
- Cr-Mo axle and sealed industrial-grade ball bearings
Brakes
- Hydraulic disc brakes from Promax
- Rotor diameter front/back: 140/140 mm
- Ergonomic brake levers designed for children's hands
Weight
9.2 kg (without pedals)
Weight limit
50 kg (maximum combined weight of bicycle, rider and cargo)
Colours
- black
- terra coppa
Shipping dimensions
112 x 64 x 23 cm
