The Ultimate Guide to Buying a Kids' Bike
woom GO 4 Kids' Bike
$639.00
Members get an est. $63.90 in rewards
Designed for kids ages 6 to 8 years old, this woom bike is superlight for easy pedaling. The child-friendly brakes and BMX-style bars help them steer and stop with confidence.
Only thru 9/28
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Key Details
Wheel Size
20 inches
Number of Gears
7 gear(s)
- Lightweight aluminum frame
- Superlight aluminum stem and handlebars
- Fully integrated 1 in. headset with sealed bearings
- BMX-style bars
- Ultraslim, child-specific ergonomic and protective handlebar grips
- Child-friendly mini V-brakes
- 7 easy-to-operate gears
- Ergonomic saddle
- Anodized aluminum seatpost
- 20 in. ultralight aluminum wheels
- Schwalbe tires
- Dimensions: 42 x 33 x 9.4 in.
- Recommended for ages 6 to 8 yrs.
- Recommended rider weight: 155 lbs.
- NOTE: Specs and images are subject to change based on component availability
Imported.
This bike comes with Coast to Coast Support, which includes:
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.
View all woom Kids' Bikes- 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 |
| Step-Through | No |
| Bike Suspension | No Suspension |
| Fork | Aluminum |
| Crankset | woom 18T |
| Bottom Bracket | Square Taper |
| Shifters | microSHIFT Ds45 |
| Rear Derailleur | microSHIFT M21SS |
| Rear Cogs | microSHIFT |
| Number of Gears | 7 gear(s) |
| Brake Type | Rim |
| Brakes | woom mini V-brakes |
| Brake Levers | woom ergo brake levers |
| Rims | woom ultralight aluminum |
| Front Hub | woom Lightweight |
| Rear Hub | woom |
| Wheel Size | 20 inches |
| Tires | Schwalbe Little Joe |
| Tire Width | 1.4 inches |
| Handlebar Shape | BMX Bar |
| Handlebar | woom aluminum bars |
| Stem | woom superlight aluminum |
| Seat Post | Anodized aluminum |
| Saddle | Ergonomic saddle |
| Pedals | woom kids' platform |
| Headset | Fully integrated 1 in. headset with sealed bearings |
| Chain | woom |
| Weight | 17 lbs. 3.2 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Kids' |
woom Bikes (253629)
| 20 IN | |
|---|---|
| Height Range | 45" - 51" |
| Effective Top Tube | 17.4 |
| Standover Height | 19.3 |
| Head Tube Angle (degrees) | 68 |
| Seat Tube Angle (degrees) | 72 |
| Wheelbase | 33.1 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated.
How we measure bikes
- Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
- Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
- Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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Customer Images
6 months ago
The Best Birthday Gift Ever!
The Best Birthday Gift Ever! We gave our 6-year-old the woom GO in Pink for her birthday, and its been a total game-changer. The vibrant "hot pink" color is stunning and high-visibility, but the real magic is the weight. Its so lightweight that she can handle it, turn, and restart on hills with total confidenceno more "it's too heavy" frustrations!
Review originally posted on woombikes
4 months ago
Great experiences
Woom 2 at age 3. Peddles after 2 weeks with no transition problems. Now at age 5 he has Woom 4 with wonderful results.Learning gears already.
Review originally posted on woombikes
3 months ago
Bike was unusable
Break cable was apart from the casing. Tried to put it back in, couldn't. Took front/left break apart and one of the plastic pieces broke. So don't try to fix this bike yourself. Took it to my local bike shop and they said they deal with this a lot and we will call you when it's ready to pick up. The breaks aren't standard, so they need to wait for the part. It's been about a week.
Review originally posted on woombikes
1 year ago
Great bike!
My 5 yr old son went through 4 different bikes. This one was light, great handlebar distance, the middle post is safer than others and the brakes were easy to access!My son was afraid to start using the pedals on the last 3 bikes. On this one it took only 1 time: within 5 minutes he started pedaling. The next day he pedaled on his own! Totally recommend!
Review originally posted on woombikes
Location:Lakewood, CO
5 months ago
Excellent Bike
Yes , I recommend this product
Wonderful second kid's bike. A substantial move up from the first bike, a REI COOP w/training wheels. Relatively light weight, forgiving rim brakes, and kid tough shifter. Within an hour of purchase, my 6-year-old grandson mastered the handbrakes (change from coaster brakes) and felt comfortable trying out the gear shift.
3 months ago
Magic amazing bikes
Woom bikes are just so amazing. Each time we get a new one the kids just jump on it and 10 minutes later they master a new skill - first just the balance which took the longest for both of them, then pedals (10 min learning curve) and now gears which took no time as well. I am so impressed and happy they get this joy.
Review originally posted on woombikes
3 months ago
Woom GO 4
Perfect bike, nice design and color, and the most important it is really lightweight compared to other bikes even smaller than this. It is comfort and safe. Nothing negative to say.
Review originally posted on woombikes
5 months ago
Review originally posted on woombikes
6 months ago
Review originally posted on woombikes
6 months ago
Review originally posted on woombikes
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