Size: 20″ wheels
Weight: 17.9 lbs
Accessorize Your woom
woom 4 Starter Bundle
$530.00
woom 4 PRO Bundle
$588.00
woom 4 Premium Bundle
$651.00
VIENNA Bell
$12.00
AIRFLO Bike Pump
$39.00
TENS Bike Gloves
$19.00
woom 4
Gear it up!
The woom 4 introduces the world of gears to kids aged 6 to 8. The woom 4’s eight-speed gearing combined with the easy-to-operate twist shifter opens up a whole new world of discovery on two wheels. The superlight frame combined with kid-specific geometry creates a comfortable riding experience and gives your Rider more confidence. Being able to ride longer distances and climb bigger hills means your child can go where they’ve never gone before.
All components that have been specifically designed with safety in mind bear the KIDSAFE PLUS seal.
“There is much more to riding a bike than just the fun of taking it for a spin: exploring the world means broadening horizons.”
woom 4
Bike Geometry
Wheel size
20″
Handlebar height
30.3″
Steering angle
68°
Top tube horizontal
17.5″
Wheelbase
32.5″
Seat tube angle
71.5°
Minimum saddle height
22.1″
Maximum saddle height
27.9″
Crank length
4.3″
Handlebar adjustability
individually adjustable
Stand-over height
19.5″
woom 4
Specifications
Frame
- Made from light, high-quality AA 6061 aluminum material
- Geometrically designed with 20” wheels with agile and easy handling in mind
- Low entry, lower sitting position, and forgiving steering geometry provide control and comfort
Gears
- 8 speeds
- SRAM X4 twist shifter
- SRAM X4 rear derailleur
Wheels
- Ultralight SOOPA DOOPA HOOPS aluminum rims
- Aluminum hubs with sealed bearings and mounts for woom click-on fenders
- Quick-release skewers for easy installation and removal
- 20 lightweight, stainless steel spokes, double-crossed spoking
Fork
- Light unicrown fork made out of aluminum
- 1″ shaft
- Generous trail angle for easy handling
Tires
- 20 x 1.4″ Schwalbe Little Joe folding tires – woom edition
- High-quality, light tires for low rolling resistance and maximum grip
- Schrader (car-type) valves
- Reflective striping on tire sidewall for optimal visibility even in low-light conditions
Headset
- Fully-integrated 1″ headset
- Sealed industrial bearings
- Integrated ahead clamp
Stem
- Lightweight stem made out of forged aluminum
- Adjustable height and reach mean the stem can be adjusted for optimal riding position as the child grows.
- Handlebars attached via two clamps and fixed with two 5 mm hex bolts
- Integrated headset bolt allows for easy compression adjustment
Seat
- Ergonomically designed to fit children's pelvis
- Non-toxic
- Side protection to lean against walls
Handlebars
- Wide, ergonomically adapted, light aluminum bars offer more control
- Sandblasted and black anodized
- Width: 54 cm
Seatpost
- Anodized aluminum
- Safety plug at the bottom
- Maximum saddle height adjustability thanks to the open seatpost design
Grips
- woom Ergogrip – designed specifically for kid’s hands
- Ergonomically formed gripping surface, non-toxic
- Handlebar ends with extra-large diameter for greater protection
- Screw-in grips ensure secure attachment to handlebars
Seatpost Clamp
- Secure aluminum seatpost clamp eliminates risk of turning/twisting
- Extra-long quick-release skewer makes it easier for kids to release and close
Drive
- 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
Brakes
- Two independently operated V-brakes with braking power adapted for children
- Brake levers are ergonomically adapted, reach-adjustable, and suitable for kid’s hands
- High-quality Jagwire cables provide reduced friction and smooth performance
Colors
- woom Red, Sky Blue, woom Green, Sunny Yellow, Purple Haze
Weight
- 17.9 lbs / (8.1 kg)
Weight Limit
- 155 lbs (70 kg)
Enclosed Tools
- 15 mm spanner for pedals
- 5 mm hex key for stem
Shipping Details
- Box dimensions: 43.7” x 23.2” x 6.9”