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 aluminium 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

• 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 thru-axle
  
• Post mount for disc brake
  

Wheels

• Lightweight, tubeless-ready aluminium rims from Alexrims
  
• Size: 20″
  
• Aluminium 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
  
• Aluminium 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 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
  
• Side protection to lean 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 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 aluminium seatpost clamp
  
• Extra-long quick-release lever, easy to operate requiring minimal strength
  
• No risk of turning and/or twisting
  

Drivetrain

• Lightweight forged aluminium 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 aluminium 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

• Aluminium 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 aluminium rims from Alexrims
  
• Size: 24″
  
• Aluminium 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
  
• Aluminium 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 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
  
• Side protection to lean against walls
  

Handlebars

• Wide, lightweight aluminium bars with tapered ends
  
• Width: 585 mm
  
• Rise: 20 mm
  

Seatpost

• 27.2 x 250 mm
  
• Anodised aluminium 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 aluminium seatpost clamp
  
• Extra-long quick-release lever, easy to operate requiring minimal strength
  
• No risk of turning and/or twisting
  

Drivetrain

• Lightweight forged aluminium 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 aluminium 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

• Aluminium 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 aluminium rims from Alexrims
  
• Size: 26″
  
• Aluminium 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
  
• Aluminium 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 aluminium
  
• 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 aluminium bars with tapered ends
  
• Width: 665 mm
  
• Rise: 20 mm
  

Seatpost

• 27.2 x 300 mm
  
• Anodised aluminium 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 aluminium seatpost clamp
  
• Extra-long quick-release lever, easy to operate requiring minimal strength
  
• No risk of turning and/or twisting
  

Drivetrain

• Lightweight forged aluminium 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