Woom OFF AIR Limited Edition - Cirrus Cloud

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.

OFF AIR 4 Technical Specs:

Frame
Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
20″ wheels
Confidence-inspiring handling: an easy-access low top tube, low centre of gravity and long wheelbase provide good balance and make for a fun, safe ride
Hard-wearing plastic chainstay protector prevents scratches
Gears
9-speed gearing
SRAM X5 trigger shifter
SRAM X5 rear derailleur
Fork
Aluminum 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 thru-axle
Post mount for disc brake
Wheels
Lightweight, tubeless-ready aluminum rims from Alexrims
Size: 20″
Aluminum hubs with sealed industrial bearings
Thru-axles for maximum torsional strength (100 x 15 mm front / 135 x 12 mm rear)
20 spokes, double-crossed spoking
Aluminum nipples
Headset
Fully integrated 1 1/8″ – 1″ headset
Sealed industrial-grade bearings
Tires
20 x 2.25" Schwalbe Rocket Ron
with ADDIX SPEED rubber compound and Tubeless Easy technology
Tubeless-ready
Presta valves
Stem
Forged aluminum
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
Side protection to lean against walls
Handlebars
Wide, lightweight aluminum bars with tapered ends
Width: 570 mm
Rise: 20 mm
Seatpost
27.2 x 250 mm
Anodised aluminum seatpost with insertion marks that indicate the minimum insertion depth
Grips
Child-friendly thanks to small diameter
Ultra comfortable with reinforced contact surface for palms
100% silicone for maximum grip
Clamped design to eliminate twisting
Seatpost clamp
Quick-release aluminum seatpost clamp
Extra-long quick-release lever, easy to operate requiring minimal strength
No risk of turning and/or twisting
Drivetrain
Lightweight forged aluminum cranks
110 mm length, narrow Q-factor
Narrow-wide chainring with 28 teeth
Cassette with 11–32 teeth
Platform pedals made from fiber-reinforced nylon with metal pins for added grip
Cr-Mo axle and sealed industrial-grade ball bearings
Brakes
Hydraulic disc brakes by Promax
Disc diameter (front/back): 160/140 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)

Shipping dimensions
112 x 64 x 23 cm

OFF AIR 5 Technical Specs:

Frame
Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
24″ wheels
Confidence-inspiring handling: an easy-access low top tube, low center of gravity and long wheelbase provide good balance and make for a fun, safe ride
Dropper seatpost compatible
Hard-wearing plastic chainstay protector
Gears
9-speed gearing
SRAM X5 trigger shifter
SRAM X5 rear derailleur
Fork
Aluminum air-sprung suspension fork from RST
Rebound and compression damping adjustment, plus lockout function
80 mm travel
1 1/8″ – 1″ baby taper steerer tube
100 x 15 mm thru-axle
Post mount for disc brake
Wheels
Lightweight, tubeless-ready aluminum rims from Alexrims
Size: 24″
Aluminum hubs with sealed industrial bearings
Thru-axles for maximum torsional strength (100 x 15 mm front / 135 x 12 mm rear)
20 spokes, double-crossed spoking
Aluminum nipples
Headset
Fully integrated 1 1/8″ – 1″ headset
Sealed industrial-grade bearings
Tires
24 x 2.35" Schwalbe Rocket Ron
ADDIX SPEED rubber compound and Tubeless Easy technology
May be ridden tubeless
Presta valves
Stem
Forged aluminum
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
Side protection to lean against walls
Handlebars
Wide, lightweight aluminum bars with tapered ends
Width: 585 mm
Rise: 20 mm
Seatpost
27.2 x 250 mm
Anodised aluminum seatpost with insertion marks that indicate the minimum insertion depth
Grips
Child-friendly thanks to small diameter
Ultra comfortable with reinforced contact surface for palms
100% silicone for maximum grip
Clamped design to eliminate twisting
Seatpost clamp
Quick-release aluminum seatpost clamp
Extra-long quick-release lever, easy to operate requiring minimal strength
No risk of turning and/or twisting
Drivetrain
Lightweight forged aluminum cranks
130 mm in length with a narrow Q-factor
Narrow-wide chainring with 28 teeth
Cassette with 11-34 teeth
Platform pedals made from fiber-reinforced nylon with metal pins for added grip
Cr-Mo axle and sealed industrial-grade ball bearings
Brakes
Hydraulic disc brakes by Promax
Rotor diameter front/back: 160/160 mm
Ergonomic brake levers designed for children's hands
Weight
10.3 kg (without pedals)
Weight limit
70 kg (maximum combined weight of bicycle, rider and cargo)

Shipping dimensions
129 x 68.5 x 23 cm

OFF AIR 6 Technical Specs:

Frame
Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
26″ wheels
Confidence-inspiring handling: an easy-access low top tube, low center of gravity and long wheelbase provide good balance and make for a fun, safe ride
Dropper seatpost compatible
Hard-wearing plastic chainstay protector prevent scratches
Gears
9-speed gearing
SRAM X5 trigger shifter
SRAM X5 rear derailleur
Fork
Aluminum air-sprung suspension fork from RST
Rebound and compression damping adjustment, plus lockout function
90 mm travel
1 1/8″ – 1″ baby taper steerer tube
100 x 15 mm thru-axle
Post mount for disc brake
Wheels
Lightweight, tubeless-ready aluminum rims from Alexrims
Size: 26″
Aluminum hubs with sealed industrial bearings
Thru-axles for maximum torsional strength (100 x 15 mm front / 135 x 12 mm rear)
28 spokes, double-crossed spoking
Aluminum nipples
Headset
Fully integrated 1 1/8″ – 1″ headset
Sealed industrial-grade bearings
Tires
26 x 2.35" Schwalbe Rocket Ron
ADDIX SPEED rubber compound and Tubeless Easy technology
May be ridden tubeless
Presta valves
Stem
Forged aluminum
CNC-machined
Handlebars attached via two clamps
+/-15° invertible 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
Side protection to lean against walls
Handlebars
Wide, lightweight aluminum bars with tapered ends
Width: 665 mm
Rise: 20 mm
Seatpost
27.2 x 300 mm
Anodised aluminum seatpost with insertion marks that indicate the minimum insertion depth
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 aluminum seatpost clamp
Extra-long quick-release lever, easy to operate requiring minimal strength
No risk of turning and/or twisting
Drivetrain
Lightweight forged aluminum cranks
150 mm in length with a narrow Q-factor
Narrow-wide chainring with 28 teeth
11–36T cassette
Platform pedals made from fiber-reinforced nylon with metal pins for added grip
Cr-Mo axle and sealed industrial-grade ball bearings
Brakes
Hydraulic disc brakes by Promax
Rotor diameter front/back: 160/160 mm
Ergonomic brake levers designed for children's hands
Weight
11.2 kg (without pedals)
Weight limit
80 kg (maximum combined weight of bicycle, rider and cargo)

Shipping dimensions
140 x 76 x 23 cm