Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
OFF AIR 4 (20")The newly upgraded 20" woom OFF AIR 4 will take its Rider beyond the beginning stages of their mountain biking journey. Stable, responsive, and equipped with a high performance front suspension system, durable components, and tubeless compatible rims and tires, it provides best in class value in its category. Off road capable and kid tested, this mountain bike was ergonomically designed for growing bodies and developing abilities. The woom OFF AIR 4
The newly upgraded 20" woom OFF AIR 4 will take its Rider beyond the beginning stages of their mountain biking journey. Stable, responsive, and equipped with a high-performance front suspension system, durable components, and tubeless-compatible rims and tires, it provides best-in-class value in its category. Off-road capable and kid-tested, this mountain bike was ergonomically designed for growing bodies and developing abilities. The woom OFF AIR 4 is more than capable on cross-country trails yet, uncompromising on gravel, pavement, or wherever the spirit leads your Rider.
FEATURES:
- Ultralight frame: The premium aluminum frame is lightweight with a sporty geometry, making it safe and intuitive for your child to handle on their off-road adventures. The kink in the top tube means it's easy to dismount quickly, so your child can get off the saddle safely even in the trickiest situations.
- Premium suspension fork: Fine-tune the air suspension fork to your rider's weight for optimal shock absorption, ensuring constant wheel contact and unwavering control, no matter how rugged the trail. You can also adjust the rebound and compression too – and activate the lockout function when riding on the road.
- Ultimate design for young riders: With a low center of gravity, flat steering angle and long wheelbase, the sporty frame design provides a perfectly smooth and agile ride – and that means secure handling, good balance and a whole lot of fun for your child.
- Powerful disc brakes: The powerful disc brakes are easy to modulate and reliable at all times – even when the weather is wet and the ground is muddy. Teamed with the child-specific, reach-adjustable brake levers, they allow your child to stay in full control in every situation.
- Precise 9-speed gearing: Shifting is smooth and precise on any terrain thanks to the easy-to-operate SRAM X5 gearing. Kids can easily work the trigger shifter with their thumbs, with the reliable Exact Actuation™ gear technology ensuring speed and precision every time.
- High-quality drivetrain: Optimum power transfer and smooth pedaling without dropping the chain? Not a problem thanks to the lightweight, child-specific cranks and the narrow-wide chainring that keeps the chain firmly in place even on the roughest of terrains. The cassette’s wide gear range keeps your child moving on flat stretches and steep climbs alike.
- Grippy, tubeless-ready tires: The high-quality Schwalbe tires provide the perfect balance between low rolling resistance and good grip. With Tubeless Easy technology and tubeless-ready rims, it’s a straightforward transition to go tubeless and benefit from even more grip and comfort.
- Age: 6 - 8 years
SPECS:
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| Fork |
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Crankset/Chainring
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| Cassette |
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| Rear Derailleur |
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| Shifters |
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| Brakes |
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| Handlebar |
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| Stem |
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| Seatpost |
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| Saddle |
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| Hubs |
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| Rims |
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| Tires |
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| Extras | N/A |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 645 reviews
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Product Reviews
★★★★★ 4
It’s possessed
Color: Coral Pink
My kitchen theme is pink and this was a perfect addition! Until it wasn’t! Fully charged it, and placed it in its holder ready for use the next morning. From my living room I heard a noise but of course blamed it on Rita (my cat). The next morning I go to make my coffee and the device is knocked over on the counter and of course.. poor Rita! The device worked fine, didn’t send my coffee into a tornado like some do, rinsed and placed in holder. Relaxing and enjoying my morning coffee and all of a sudden this noise happens again and I see the device is on and actively spinning in the holder!!! What the energy? I run to turn it off but it stopped before I can get there. Ok, let’s not panic. Next morning? Device is dead. So I recharge, and lay it on the counter buttons up. Later that night minding my own business, the device is now rattling across the counter!!! Ran over to it, pushed the buttons and it won’t stop! After about 45 seconds it stopped. I recharge again because it died, and the sad thing is still asystolic.. (no pulse), dead, gone. What the??? So I don’t know what to tell you! It looks pretty!
Updated: The company reached out to me and I received a replacement within 2-3 weeks. The new one is not possessed or dancing across the counter. Good power, 3 speeds, 2 attachments (which I seem to use without the power - such as mixing spices). Thank you for standing behind your product in a volatile economic time.
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Reviewed in the United States on January 21, 2024
★★★★★ 5
Best frother!
Color: Ultra Violet, Color: Ultra Violet
Amazing customer service! I purchased this frother earlier this year and started using it for my morning coffee. It was amazing and froth up my creamer in no time. All three settings have their own amount of power. So I was very impressed with the speed. The froth texture is heavenly. After using the frother it is very easy to rinse the piece you used. I just rinse it and place it back in its stand. I think it’s very well worth its money. Unfortunately after 4 months the machine would not charge properly so I reached out to the company and within 24 hours, they replied and sent me a replacement. I didn’t pay much attention to the fact it had a 2 yr warranty! So grateful! Thank you so much for your help!
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Powerful frother and g4ea
Color: Vivid Red
I love this frother, I bought one for myself and 2 others as gifts! It is super powerful, just the first speed is usually what I use for a cup of tea or coffee, the faster speeds work great for frother hot cocoa when I make a couple cups worth on the stove top. My frother attachment did crack at the top several months after purchase but the company immediately sent me a replacement piece which has been going strong for over a month now. Great handheld frother and company that stands by their products!
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Reviewed in the United States on May 13, 2026
★★★★★ 4
First one failed quickly, warranty replacement working great
Color: Turquoise Green
Absolutely loved this for the two months it worked but it completely stopped working after only 2 months.
Update: I couldn’t decide on stars. The company honored the warranty and sent me a replacement. So far it is working great and I love it like my first one. Hopefully it will last. If it also fails quickly I’ll update again and take off stars. If it lasts I’ll increase stars because I really do love this. It works far better than any other one I’ve owned, it’s a nice light weight, comfortable to hold, has strong power, holds a charge well, has three speed options, and has a stand. I’ve tried multiple frothers. This one is by far the best one yet with best design and features.
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Reviewed in the United States on January 5, 2026
★★★★★ 5
I love this milk frother, a must have for coffee lovers!
Color: Silver
I absolutely love this Bonsenkitchen milk frother! It creates the perfect foam in seconds and my coffee has never tasted so good. The rechargeable feature is so convenient and I love that it comes with a stand to keep it organized on my counter. It is easy to use, easy to clean and works perfectly every single time. If you love coffee at home this frother is a game changer, it makes you feel like you are at a coffee shop without spending a fortune. Highly recommend!
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Reviewed in the United States on May 24, 2026
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