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Superlight 20″ kids bike with easy twist-shifting 7-speed gears, ergonomic saddle, protective grips & BMX-style bars. Perfect for ages ~6–8, this lightweight ride boosts confidence, tackles hills, and makes family adventures more fun.
Superlight 20″ kids bike with easy twist-shifting 7-speed gears, ergonomic saddle, protective grips & BMX-style bars. Perfect for ages ~6–8, this lightweight ride boosts confidence, tackles hills, and makes family adventures more fun.
Woom Bikes

Woom Go 4 - 20 - Kids Bike - Metallic Turquoise

$543.15 $639.00 15% off
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So, instead, you can submit your email address for the item you are interested in, and we will email you as soon as stock arrives in the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indicative purposes only and can change at any time without notice.

The dates we provide are based on information given by our suppliers. Whenever we get updated information from our suppliers we will endeavor to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for dispatch to you or collection via Click & Collect on Undetermined

Woom Go 4 - 20 - Kids Bike - Metallic Turquoise

Brand:Woom Bikes

Code:Woom Go 4 20 Turquoise

The Woom GO 4 Kids Bike is a premium lightweight 20″ bicycle engineered for young riders ready to move beyond basic pedals and explore with confidence. Built by Woom Bikes for kids approximately 6–8 years old (height ~48–57″ / 122–145 cm), the GO 4 combines easy twist 7-speed shifting, ergonomic kid-specific design, and quality components to make every ride smoother, safer, and more fun.

Featuring a lightweight aluminum frame and kid-optimized geometry, the GO 4 offers excellent balance, effortless handling, and responsive steering that grows with your child’s skills. The 7-speed drivetrain with a simple twist shifter helps kids tackle small hills, ride longer distances, and learn multi-gear control without complexity. Smooth-rolling 20″ wheels paired with durable tires deliver confident traction on neighborhood streets, bike paths, and parks.

Comfort and safety are built in with ergonomic hand brakes sized for smaller hands, a relaxed upright riding position, and protective handlebar grips. Designed to be easy to ride and easy to control, the Woom GO 4 inspires independence while reducing frustration on every ride. Whether cruising around the block, heading out on family adventures, or mastering new terrain, the GO 4 is a versatile kids bike that supports skill development and lasting fun.

Choose the Woom GO 4 Kids Bike for a high-quality, lightweight 20″ bike that helps kids ride farther, shift gears confidently, and enjoy cycling every day.

πŸ›οΈ Buyer’s Guide — Woom GO 4 Kids Bike

The Woom GO 4 is a lightweight, high-quality 20″ kids bike with 7 gears, ideal for children progressing to geared riding and taking on longer, more varied routes. It blends easy usability with premium design so kids ride more confidently and comfortably.(Two Wheeling Tots)


🚲 Who the Woom GO 4 Is For

The Woom GO 4 is perfect if your child:

  • Is around 6 – 8 years old with a height of ~45″ – 51″ (115 – 130 cm).(Two Wheeling Tots)

  • Is ready to move up from a 16″ bike and wants to learn gear shifting.(Woom)

  • Loves riding longer distances, exploring neighborhood streets or gentle trails.(Woom)

  • Would benefit from a lightweight bike that makes pedaling easier uphill and on longer rides.(REI)


πŸ”‘ Key Features & Benefits

⭐ Performance & Usability

  • 7-speed drivetrain with easy twist shifter — intuitive for kids to learn gear changes.(help.woombikes.com)

  • Superlight aluminum frame enhances acceleration and control.(REI)

  • Child-specific brakes and grips sized for small hands improve comfort and safety.(REI)

🚴‍♂️ Comfort & Growth

  • Adjustable seat and handlebar allow fit to grow with your child, extending the bike’s useful life.(Two Wheeling Tots)

  • Upright, stable geometry helps children feel secure while learning gears and balance.(Two Wheeling Tots)

🧰 Everyday Versatility

  • Great for everyday rides, family outings, errands, and school rides.(Rascal Rides)

  • Lightweight build helps kids ride farther with less effort than many heavier 20″ bikes.(Rascal Rides)


πŸ‘ Pros — What Shoppers Like

  • Lightweight and easy to handle — helps children ride with confidence and less fatigue.(Rascal Rides)

  • High-quality components improve durability and smooth shifting.(Rascal Rides)

  • Child-friendly design supports learning and skill progression, not just size scaling.(Two Wheeling Tots)

  • Adjustable fit extends usability as your child grows.(Two Wheeling Tots)


⚠️ Considerations Before Buying

  • Price: It’s a premium kids bike, generally more expensive than basic department store models.(Rascal Rides)

  • Not a mountain bike: While versatile, the GO 4 is best on pavement and light paths; true trail bikes (like kids mountain models) are better for off-road.(Woom)

  • Gears add complexity: While the 7-speed helps on varied terrain, children should be ready to learn gear shifting.(Woom)


πŸ“ Sizing Tips

  • Match the bike size to your child’s height and inseam first — not age alone.(Woom)

  • Ensure your child can comfortably touch the ground with both feet when seated at the lowest saddle height.(Woom)

  • A proper fit improves safety and confidence, especially when learning gears or riding longer distances.(Woom)


🧠 Who Might Want a Different Bike

If your child:

  • Prefers trail riding or rough terrain, a kids mountain bike like the Woom OFF 4 might be better.

  • Needs disc brakes and adventure tire grip, consider the Woom EXPLORE 4.

  • Is still mastering balance or just shifting from a balance bike, a smaller or different GO model could be more suitable.(Woom)


🏁 Bottom Line

The Woom GO 4 Kids Bike is an excellent choice for riders ready to graduate to a geared 20″ bike. Its emphasis on lightweight design, intuitive gearing, and ergonomic comfort makes it a standout option for kids who are growing their skills and confidence on two wheels.(Rascal Rides)

Want this as a short comparison vs. other kids bikes? I can make a chart for you!

Technical Information

πŸ“Š TECHNICAL SPECIFICATIONS — Woom GO 4 Kids Bike

🧰 General

  • Model: woom GO 4

  • Size: 20″ wheel bike for kids aged 6 – 8 years (recommended height ~115 – 130 cm / 45 – 51 in) (Woom)

  • Weight: ~7.8 kg (17.2 lb) (Woom)

  • Maximum Rider Weight: ~155 lbs (70 kg) (Tikes Bikes)


🚴‍♂️ Frame & Fork

  • Frame Material: Lightweight AA 6061 aluminum frame for easier handling and control (Tikes Bikes)

  • Fork: Lightweight aluminum fork (Tikes Bikes)

  • Geometry: Upright, kid-specific geometry for confident steering and balance (Het Zwarte Fietsenplan)


βš™οΈ Drivetrain

  • Gears: 7-speed drivetrain with easy twist-shifter for intuitive shifting (Woom)

  • Derailleur: Rear derailleur compatible with 7 speeds (e.g., microSHIFT) (https://www.sport-conrad.com/)

  • Cranks: Lightweight aluminum cranks with narrow tread for kid-specific ergonomics (Tikes Bikes)

  • Chainring: Narrow-wide chainring for chain retention and smoother pedaling (Tikes Bikes)


πŸ›ž Wheels & Tires

  • Wheel Size: 20″ ultralight aluminum rims (Tikes Bikes)

  • Tires: 20 × 1.4″ Schwalbe Little Joe tires for low rolling resistance and grip (Tikes Bikes)

  • Quick-Release Front Wheel: Yes, for easier transport and storage (front) (Ski a Bike Centrum Radotín)


πŸ›‘ Brakes & Steering

  • Brakes: Mini V-brakes (front and rear) with ergonomic, kid-friendly levers (Tikes Bikes)

  • Handlebars: BMX-style wide bars for control and confidence (Woom)

  • Grips: Protective, ergonomic handlebar grips for comfort and safety (Woom)


πŸ’Ί Comfort & Fit

  • Saddle: Comfort-shaped, ergonomic kids’ saddle (Tikes Bikes)

  • Seatpost: Anodized aluminum seatpost for lightweight adjustability (Tikes Bikes)

  • Adjustable Stem: Lets the handlebars grow with the child (height and length adjustments) (Woom)


πŸ”§ Included Tools & Features

  • Included Tools: 15 mm wrench (pedals) and 4 mm hex key (stem) (Tikes Bikes)

  • Pedals: Included and sized for kids

  • Colors: Metallic blue and other bright kid-friendly finishes (Tikes Bikes)


βœ”οΈ Key Benefits

  • Lightweight design makes pedaling and handling easier for kids (Woom)

  • 7 speeds open up longer rides and gentle hill climbing (Woom)

  • Kid-specific ergonomics boost confidence and safety on every ride (Woom)

Sizing Information

🚲 Sizing Guide — Woom GO 4 Kids Bike (20″)

πŸ“ Recommended Rider Size

  • Height Range: 45″ – 51″ (115 – 130 cm) — ideal fit for the 20″ wheel size.

  • Age Range: ~6 – 8 years — typical range of riders who fit this size comfortably.

πŸ“ Saddle Height Range

  • Minimum Saddle Height: ~22.4″ (56.9 cm)

  • Maximum Saddle Height: ~28.7″ (72.9 cm)
    This adjustable range helps the bike grow with your child while keeping them in control.

πŸ“ Additional Frame Fit Info

  • Stand-over Height: ~19.3″ – helps ensure kids can comfortably straddle the bike when stopped.


πŸ” How to Use This Guide

  1. Measure Your Child’s Height: The primary fit guide for a 20″ wheel bike.

  2. Check Saddle Height: Adjust so your child can touch the ground with toes when seated — especially important when first learning gears and balance.

  3. Inseam Can Help Too: Ideally, an inseam of ~22″ – 28″ pairs well with this bike size for comfort and control.


πŸ”Ž Fit Tips

  • Age is a rough guide, height matters most. Kids grow at different rates, so height and inseam beat age alone.

  • Kids should be able to place feet flat on the ground when starting — increases confidence and safety.

  • If your child is near the top of the range, the GO 4 may still fit but consider how long you want the bike to be comfortable before moving up to a 24″ model like the woom Explore 5.

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