The Woom OFF 4 is a high-performance, ultralight 20-inch mountain bike engineered specifically for young riders aged 6 to 8 years. Designed as a true off-road bike (not just a kids’ bike), it combines premium MTB components with child-specific ergonomics to deliver exceptional control, comfort, and riding confidence.

Built for trails, gravel, and everyday riding, the OFF 4 helps kids progress faster while enjoying a smooth and stable ride across varied terrain.

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Key Highlights

Ultralight Performance Frame

Constructed from premium 6061-T6 aluminum, the frame is both lightweight and durable. The low center of gravity and extended wheelbase improve balance and stability, making it easier for kids to handle technical terrain.

Carbon Rigid Fork

A high-quality carbon fork reduces overall weight while maintaining stiffness and control. This setup is ideal for young riders, offering efficient climbing and precise steering without the added weight of suspension.

9-Speed SRAM Drivetrain

Equipped with SRAM X5 components, the bike delivers smooth and reliable shifting. The wide gear range makes climbing hills and riding trails easier and more efficient for kids.

Hydraulic Disc Brakes

Powerful hydraulic disc brakes provide excellent stopping power in all conditions. The brake levers are ergonomically designed for small hands, ensuring better control and safety.

Trail-Ready Wheels & Tires

• 20” tubeless-ready wheels
• Schwalbe Rocket Ron tires (2.25”)
  These offer strong grip, low rolling resistance, and excellent shock absorption—perfect for off-road riding.

Kid-Specific Ergonomics

Every contact point is tailored for children:

• Narrow grips for small hands
• Ergonomic saddle for comfort
• Adjustable stem (flip-flop design) for growing riders
  This ensures proper posture and long-ride comfort.

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Technical Specifications

• Wheel Size: 20”
• Weight: Approx. 8.1 kg (17.9 lbs)
• Frame: 6061-T6 aluminum
• Fork: Carbon rigid fork
• Gears: 9-speed SRAM X5
• Brakes: Hydraulic disc brakes (140mm rotors)
• Tires: 20 x 2.25” Schwalbe Rocket Ron
• Wheels: Tubeless-ready alloy rims
• Crankset: 28T chainring with narrow Q-factor
• Cassette: 11–32T

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Sizing & Fit

• Recommended Age: 6–8 years
• Rider Height: 118–130 cm
• Max Load Capacity: Approx. 50 kg (rider + bike + gear)

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Ride Experience

The Woom OFF 4 is designed to feel like a “real mountain bike” in a kid’s size. It is:

• Extremely lightweight → easier climbing and handling
• Stable geometry → boosts confidence on trails
• Responsive drivetrain → smooth riding across terrain

It performs equally well on:

• Dirt trails
• Gravel paths
• Pump tracks
• Urban roads

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Who Should Buy This Bike?

Choose the Woom OFF 4 if:

• The child is already confident riding and wants to explore trails
• You want a lightweight, performance-oriented MTB (no suspension)
• You prefer low maintenance and better pedaling efficiency

If you need more comfort on rough terrain, consider the OFF AIR version (with suspension).