An innovative and lightweight 20 in. bike, the woom ORIGINAL 4 kids' bike introduces children ages 6 years and older to the world of shifting with its 7 speeds and easy-to-use twist shifter.
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- Frame is geometrically designed for kids ages 6 and up and forged of sturdy, superlight aluminum; lightweight material means riders can go farther and faster
- Low standover height makes getting on and off the bike easy
- Low entry, lower sitting position and forgiving steering geometry provide control and comfort
- Grips are ergonomically designed for kids' hands; screw-in grips ensure secure attachment to handlebar
- 7-speed gearing and easy-to-operate twist shifter allows riders to conquer the biggest hill in their neighborhood
- Independently operated front and rear V-brakes are easy to operate thanks to their ergonomically adapted brake levers with reach adjustability
- Integrated headset bolt allows for easy compression adjustment
- Vario stem is made of lightweight forged aluminum; adjustable height and reach mean the stem can be adjusted for optimal riding position as the child grows
- High-quality Jagwire cables provide reduced friction and smooth performance
- Saddle is designed to accommodate the anatomy and the biomechanics of growing riders
- Saddle is equipped with side protection to lean against walls
- Quick-release seatpost clamp offers a simple, quick and tool-free way to adjust the saddle height—it's even easy enough to be operated by children
- Narrow-wide chainring ensures minimal chain slippage and provides good control
- Crank length and distance between the pedals are ergonomically adapted to fit children's bodies
- Pedals are durable, reflective and slip resistant
- woom SOOPA DOOPA HOOPS wheels are specially designed for the child-specific geometry on the woom 4
- Wheels feature smooth, frictionless hubs and double-walled rims; rims come with a 20 stainless-steel spoke design to offer a perfect balance of strength and light weight
- High-quality Schwalbe Little Joe tires provide traction and durability; 20 in. diameter and 1.4 in. width allow riders to traverse pavement and dirt with plenty of control
- Reflective sidewalls of the tires boost visibility on darker rides
- Extra-long quick-release skewer makes it easier for kids to release and close
- Contact points on the bike are made specifically for kids
- woom LEGGIE kickstand comes preinstalled
- NOTE: Specs and images are subject to change based on component availability
Imported.
- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 20% off shop services
- Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
| Best Use | Cycling |
|---|---|
| Frame | AA 6061 aluminum |
| Bike Suspension | No Suspension |
| Fork | Aluminum unicrown; 1 in. steerer |
| Crankset | Lightweight, forged 4.3 in. (110 mm) aluminum cranks with narrow tread (Q-factor); narrow-wide chainring with 28 teeth |
| Bottom Bracket | Included |
| Shifters | microSHIFT MS29 twist shifter |
| Rear Derailleur | microSHIFT M21SS |
| Rear Cogs | Sunrace 7-speed, 11-28T |
| Number of Gears | 7 gear(s) |
| Brake Type | Rim |
| Brakes | V-brakes |
| Brake Levers | HJ-340PDV, alloy/resin, 3-finger |
| Rims | Ultralight SOOPA DOOPA HOOPS aluminum |
| Front Hub | 20h, 14 gauge, 100 mm, QR type, 2x sealed bearings, steel axle |
| Rear Hub | 20h, 14 gauge, 135 mm, bolt type, 4x sealed bearings |
| Wheel Size | 20 inches |
| Tires | Schwalbe Little Joe Folding 20 x 1.4 in. |
| Tire Width | 1.4 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | Aluminum; sandblasted; black anodized; width: 54 cm |
| Stem | Forged aluminum; adjustable height and reach |
| Seat Post | Anodized aluminum; 22.2 x 260 mm; minimum insertion point marked; integrated guide in seat tube |
| Saddle | Ergonomically designed; non-toxic; side protection to lean against walls |
| Pedals | Plastic |
| Headset | Fully integrated 1 in. headset; sealed industrial bearings; integrated ahead clamp |
| Chain | KMC Z8.1, 1/2 in. x 3/32 in. |
| Weight | 16 lbs. 14.4 oz. (without pedals) |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Kids' |