

Superlight woom children's bikes with 20″ wheels
Superlight bikes with 20″ wheels for kids aged 6 to 8 – for full-on fun while riding
Looking for a bike with 20″ wheels? Our four models in this size are designed for children who are between 115 and 131 cm tall. Take your pick between a classic bike with rim brakes, a sporty all-rounder with disc brakes, a mountain bike (with or without a suspension fork) and an urban lifestyle bike with a front rack – and give your young rider the perfect superlight bike for them.
The classic bike
woom GO 4
The superlight bike with 20″ wheels, a safety-conscious design, BMX-style bars and seven gears for kids aged 6 and up.
The all-rounder
woom EXPLORE 4
The superlight, all-rounder 20" children's bike for riders aged six and up with disc brakes, 7 gears and all-terrain tires.
The mountain bikes
woom OFF 4
An ultralight and durable 20" mountain bike (second generation, 2023 model) with a carbon fork, 9 gears and disc brakes designed for children aged 6 years and over.
woom OFF AIR 4
The ultralight and durable 20″ mountain bike with front suspension, 9 gears and disc brakes designed for children aged 6 years and over.
The urban bike
woom NOW 4
The fully equipped urban lifestyle bike with a front rack and innovative frame geometry (16 inch front wheel, 20 inch rear wheel) provides kids aged 6 and up with a stress-free and secure way of carrying their school bag.
Specifications may vary slightly depending on the model variant.
Find the perfect bike!
Not sure which bike is best suited to your child? Our handy bike comparison guide is here to help! Simply select two models to see them side by side.

Years
- Lightweight, high-quality AA 6061 aluminum with butted tubes
- 20″ wheels
- Agile and easy handling: low entry, very low riding position and forgiving front-end geometry resulting in good control and more grins
- Frame material: lightweight, high-quality AA 6061 aluminum with butted tubes
- 20" wheels
- Child-specific, sporty geometry with a slight kink in the top tube and angular tube profile for a comfy ride and standout style.
- 7 gears with a child-friendly gear indicator
- Twist shifter: microSHIFT Ds45
- Rear derailleur: microSHIFT M21SS
- 7 gears
- Shimano Tourney RD-TY200-SS rear derailleur
- Shimano SL-RV300 Revoshift twist shifter
- Lightweight aluminum unicrown fork
- 1″ steerer tube
- Generous trail angle for easy, well-balanced handling
- Lightweight aluminum unicrown fork
- 1″ steerer tube
- Generous trail angle for easy, well-balanced handling
- Ultralight aluminum rims
- Lightweight aluminum hubs with sealed bearings
- Front: fast installation and removal thanks to quick-release skewer
- Rear: installation and removal with 5 mm hex key
- 20 lightweight, super strong stainless steel spokes, double-crossed spoking
- Ultralight aluminum rims
- Aluminum hubs with sealed bearings and mount for woom click-on mudguards
- Quick-release axle on front wheel for easy removal/fitting
- Bolt-on rear wheel
- 24 lightweight, super strong stainless steel spokes, double-crossed spoking
- Fully integrated 1″ headset
- Sealed industrial-grade bearings
- Integrated Ahead plug
- Fully integrated 1″ headset
- Sealed industrial-grade bearings
- Integrated Ahead plug
- 20 × 1.4″ Schwalbe Little Joe
- High-quality, lightweight tires with low rolling resistance for maximum safety with minimum effort
- Car-type valves allowing the tires to be pumped up at petrol stations
- Reflective stripes for side visibility
- 20 × 1.5" Billy Bonkers folding tires (Performance Line), Schwalbe
- Agile, grippy all-terrain tires with low rolling resistance
- Increased visibility in low-light conditions with reflective stripes on the sidewalls
- Superlight stem made out of forged aluminum
- 40 mm/+15°
- Recessed clamp bolts and sleek, rounded design making the stem extremely knee-friendly
- Handlebars attached to the stem with two 5 mm hexagon socket bolts
- Superlight stem made out of forged aluminum
- Adjustable in both height and reach to ensure an optimal bike fit as the rider grows
- Handlebars attached via two clamps and fixed with two 5 mm hexagon socket bolts
- Handy ABC marking makes it easier to adjust the handlebars in relation to the saddle height
- Ergonomic design
- Durable, waterproof and weather-resistant material
- Super comfy
- Ergonomic design, specific for each frame size/age
- Developed in collaboration with Selle Royal
- Wide, ergonomic and lightweight aluminum bars for more control
- BMX style with high rise for maximum adjustability
- ABC marking for precise adjustment in relation to the saddle height
- Sandblasted and anodized in black
- Super narrow diameter grip, suitable even for very small hands
- Width: 560 mm
- Wide, lightweight aluminum bars with an ergonomic design and child-specific tapered ends to suit smaller hands
- Sandblasted and anodized in black
- Width: 550 mm
- Made of aluminum
- Long quick-release lever, easy to operate requiring only minimal strength
- No risk of turning and/or twisting
- Anodized aluminum seatpost with visible minimum insertion mark
- Handy ABC marking makes it easier to adjust saddle height in relation to the bars/stem
- Ergonomic design
- Ultra slim, child-specific diameter to ensure good grip
- Targeted comfort zone for ultimate hand-to-bar contact
- Oversized ends for protection in the event of a crash
- Lock-on grips with integrated anti-twist clamp
- Ergonomic design
- Slim, child-specific diameter
- Targeted comfort zone prolongs the onset of fatigue on long rides
- Lock-on design for secure attachment to the handlebars
- Lightweight, forged 110 mm aluminum cranks with narrow tread (Q-factor)
- Narrow-wide chainring with 28 teeth
- Cassette with 11–28 teeth
- Narrow, flat platform plastic pedals
- Sealed cartridge
- Lightweight, forged 110 mm aluminum cranks with narrow tread (Q-factor)
- Narrow-wide chainring with 28 teeth
- Cassette with 11–28 teeth
- Slim, plastic platform pedals
- Sealed cartridge bearings
- Two independently operated mini V-brakes requiring minimal strength for maximum braking power
- Ergonomic brake levers designed for small hands with short fingers and little strength
- High-quality Jagwire Bowden cables with low friction for smooth performance
- Hydraulic flat mount disc brakes from Promax
- Rotor diameter front/back: 140/140 mm
- Adjustable, ergonomic brake levers, designed for children
- 15 mm spanner for pedals
- 4 mm hex key for stem
- 15 mm spanner for pedals
- 4 mm hex key for stem
woom red, vibrant yellow, hot pink, metallic turquoise, metallic blue
woom red, magnetic blue, jungle green, neon coral
- 7.8 kg (without pedals)
7.8 kg (without pedals)
- 70 kg
Up to 70 kg
- 107 × 57 × 24 cm
109 x 23.5 x 54 cm
- Made from aluminum
- Long quick-release lever that's easy to operate with minimal strength
- No risk of twisting
- Integrated shim prevents the seatpost from being scratched

Still undecided? Let's help you find the right bike for your young rider!
If your child is just getting started on a bike or is moving onto a woom bike after riding one from a different brand, then our bike finder tool will help you determine exactly the right size.
You can kit out your woom bike with 20″ wheels with the following equipment:

Our premium aluminium bike bell is easy to use and ensures a strong and clear sound.

Our premium stainless steel bike water bottle holds 500 ml, is easy to clean and won't leak.

Our innovative LEGGIE kickstand is compatible with all woom ORIGINAL/GO/EXPLORE/OFF/OFF AIR/UP bikes (except the woom ORIGINAL/GO 1). It is NOT included when you buy one of our bikes.

This lightweight yet robust rack for the woom ORIGINAL, woom GO, woom EXPLORE and woom NOW is easy to mount and comes with an integrated reflector.
Please check the compatibility of your woom bike. For more details on sizing and compatibility, please consult the product description below.

Our mudguards designed for the woom EXPLORE and woom GO/ORIGINAL bikes with 14" to 26" wheels provide maximum water protection from road spray and puddles, and are easy to mount and remove.

Our premium brass bike bell is easy to use and ensures a strong and clear sound.
Explore your child's new bike
Check out our top tips to help your child improve their skills. And 10 mistakes they should avoid on their bike. Plus, the cool tricks they can learn first. We have all the ideas and inspiration you need right here.












