The Ultimate Guide to Buying a Kids' Bike
woom OFF AIR 6 Kids' Mountain Bike
$1,449.00
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Built to handle it all—bike parks, gravel roads, even singletrack—the woom OFF AIR 6 kids' mountain bike is ergonomically designed for growing riders to deliver good times that develop their skills.
Only thru 9/28
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Key Details
Wheel Size
26 inches
Fork Travel
90 millimeters
Number of Gears
9 gear(s)
- This bike is stable, responsive and equipped with a high-performance front suspension, durable components, and tubeless-compatible rims and tires
- This model is updated with a dropper seatpost-ready frame design
- Ultralight aluminum frame with butted hydroformed tubes has a long wheelbase, sporty geometry and slack steering angle; a long wheelbase and low center of gravity aid balance
- Bend in the top tube makes it easy to dismount quickly; cable port on the seat tube allows for the addition of an internally routed dropper seatpost (not included)
- High-quality suspension fork provides comfort on the bumpiest terrain; fork can be adjusted to the rider's weight
- With adjustable compression and rebound damping, the fork can be tuned for the terrain and the day's conditions; lockout function is a bonus on climbs or flat roads
- Precise and easy-to-operate SRAM X5 gear system has 9 gears suitable for a wide range of gradients thanks to 28 teeth in the front and an 11–34 cassette in the back
- Easy-to-use SRAM trigger shifter allows riders to shift smoothly and reliably through the gears using their thumb and index finger
- Hydraulic disc brakes improve control on rough terrain and in wet conditions with their excellent modulation and ergonomic brake levers designed for kids' hands
- Quick-release seatpost clamp allows the streamlined, MTB-specific saddle to be easily adjusted while remaining secure
- Ergonomic contact points are made specifically for kids to provide a more comfortable ride
- Saddle is designed to accommodate their anatomy and biomechanics; tapered handlebar ends and grips are ergonomically designed for kids' hands and with off-roading in mind
- Extra rubber on the palm-facing portion of the grips adds comfort; 100% silicone grips provide maximum hand grip
- Pedals are durable and reflective; they feature slip-resistant pins for extra traction
- Thanks to its flip-flop design, the stem can be turned over and mounted upside down to adjust the handlebar height, helping assure the perfect hand position and fit
- High-quality Schwalbe mountain bike tires with ADDIX Speed rubber compound offer a combo of low rolling resistance, high grip, good shock absorption and excellent durability
- OFF rims and Schwalbe tires are compatible to be set up as a tubeless system
- woom-specific molded chainstay protector
- Thru axle provides maximum torsional strength
- 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 | Mountain Biking |
|---|---|
| Frame | AA 6061 aluminum |
| Mountain Bike Style | Cross-country |
| Bike Suspension | Front Suspension |
| Fork | F1RST hydraulic air suspension fork with adjustable compression and rebound damping, plus lockout; 1 to 1-1/8 in. tapered steerer tube ; 100 x 15 mm thru axle; post mount for disc brake |
| Fork Travel | 90 millimeters |
| Crankset | Lightweight, forged aluminum 5.9 in. (150 mm) kid-specific cranks with narrow tread (Q-factor) |
| Bottom Bracket | Thun |
| Shifters | SRAM X5 trigger shifter |
| Rear Derailleur | SRAM X5 rear derailleur |
| Rear Cogs | 9-speed 11-36T cassette |
| Number of Gears | 9 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Promax Hydraulic disc brakes |
| Brake Levers | Ergonomic brake levers designed for childrens' hands |
| Rims | Tubeless-compatible Alex rims wheelset |
| Front Hub | Front hub for disc brake; 14 gauge, 28h, 100 x 15 mm; 2x bearings without quick release |
| Rear Hub | Rear hub for disc brake; 14 gauge, 28h, 135 x 12 mm; alloy cassette body, 4x sealed bearings without quick release |
| Wheel Size | 26 inches |
| Tires | Schwalbe Rocket Ron 26 x 2.35 in. |
| Tire Width | 2.35 inches |
| Handlebar Shape | Riser Bar |
| Handlebar | Sandblasted and silver anodized aluminum; wide, lightweight and ergonomically adapted for more control; tapered ends to fit kids' hands; width: 585 mm; rise: 20 mm |
| Stem | Forged aluminum: 50 mm / +/-15 deg |
| Seat Post | Anodized aluminum; 27.2 x 300 mm; insertion marks indicate the minimum insertion depth; quick-release seatpost clamp |
| Saddle | Ergonomically designed to fit kids' pelvis; nontoxic; side protection to lean against walls |
| Pedals | Flat pedals; 2 x 6 pins; chromoly axle |
| Headset | Fully integrated 1 to 1-1/8 in. headset; sealed industrial bearings |
| Chain | X9 NPGY; 1/2 in. x11/128 in. (110L) |
| Weight | 25 pounds |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Kids' |
woom Bikes (233846)
| 26 IN | |
|---|---|
| Height Range | 55 - 65 |
| Effective Top Tube | 22.4 |
| Head Tube Angle (degrees) | 69 |
| Seat Tube Angle (degrees) | 71 |
| Wheelbase | 41.7 |
Sizing Notes
Measurements are stated in inches.
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
Location:San Antonio, TX
2 years ago
Lightweight, neighborhood kids of all ages love it
Received free product
Yes , I recommend this product
This bike fits a wide range of sizes. I had all of the neighborhood kids try it out. I have an average size 8 year old who has officially stolen the bike and he loves every moment of it. It is a little on the large size for him but he refuses to give it up. With the amount of adjustments he truly does fit this bike. This size is great for 10-16 year olds. I can even ride it comfortably as an adult. It is extremely light and the gear shifts very smoothly. I think the light weight it what makes my kid love it so much. Only draw back is the paint scratched very easily. Not sure where the scratch came from and it is merely cosmetic, so not a deal breaker to the kids.
2 years ago
Great bike but.......
Bike looks great and was certainly reasonably priced for the level of build quality, I would go as fart to say that for the money it competes with bikes in a much higher price point. The only negative thing that I will say is the front brake barely works (feels spongy and sometimes pulls to the grip without working). I suspect air in the lines from the shipping process as the rotor spacer was still in place and the brakes were never pulled with nothing between the pads. The fact I had to have it shipped means there is no support after the purchase to get this repaired so I will have to do it myself. This was my 3rd Woom purchase and 2 of the 3 purchases had minor issues needing correction upon arrival.Thanks,KD
Review originally posted on woombikes
1 year ago
Great Bike!
other than a couple of problems with the front fork, we have had a great experience! We bought our son a dropper post for christmas for this bikee, and the specs were very helpful! great job woom
Review originally posted on woombikes
1 year ago
Amazing Bike we love it!
We've been riding woom bikes since our children first started mountain biking, and the woom OFF AIR continues to impress. It's been the perfect companion on our family's trail adventures reliable, lightweight, and built with quality that truly stands out.The first thing that struck us was how incredibly light the OFF AIR is. For kids, especially those just gaining confidence off-road, the lightweight frame makes all the difference. Its easy to maneuver and control, which means more fun and fewer frustrations on the trail.The air suspension fork is a game-changer. It smooths out bumps and rougher sections of the trail without overwhelming young riders. Our kids instantly felt more confident, and its been amazing to see their skills grow on a bike that supports them at every step.From the thoughtful geometry to the high-quality components, everything about the woom OFF AIR feels well-designed for younger riders. Shifting is smooth, braking is responsive, and the overall ride quality is just... dialed in.As a family thats been riding woom bikes for years, we can confidently say the OFF AIR continues the tradition of excellence. Its a bike our kids want to ride, and one we feel great about putting them on. Couldnt recommend it more as always, super fast shipping and quick assembly.
Review originally posted on woombikes
3 months ago
Review originally posted on woombikes
2 years ago
Review originally posted on woombikes
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