Woom Kids' Off Air 4 Mountain Bike 2025

Rare AIR

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.

Specifications:

• Frame  -  Frame material: lightweight, high-quality 6061-T6 aluminum with butted and hydroformed tubes, 20″ wheels, Easy-access low top tube to assist dismounting, Long wheelbase and low center of gravity to aid balancing, Featuring woom-specific molded chainstay protector 
• Gears  -  9 speeds, SRAM X5 trigger shifter, SRAM X5 rear derailleur
• Suspension Fork  -  RST SPEX hydraulic air suspension fork with 60 mm travel, adjustable compression, and rebound damping, plus lock-out, 1 – 1 ⅛″ tapered steerer tube, 100 x 15 mm thru axle, Post mount for disc brake
• Wheels  -  Tubeless-compatible Alexrims wheelset, Aluminum hubs with sealed industrial bearings, Thru axles for maximum torsional strength (100 x 15 mm front and 135 x 12 mm rear), 20 G14 spokes, double-crossed spoking, Aluminum nipples
• Headset  -  Fully integrated 1 – 1 ⅛" headset, Sealed industrial bearings
• Tires  -  20 x 2.25″ Schwalbe Rocket Ron with ADDIX SPEED rubber compound, Quality mountain bike tires with low rolling resistance, maximum grip, good shock absorption, and excellent durability, Presta valves, tubeless conversion ready
• Stem  -  Forged aluminum, CNC-machined, Handlebars attached via two clamps, Rise/drop: +/-15° with flip-flop design to adjust the handlebar height, Length: 50 mm
• Saddle  -  Ergonomically designed to fit a child’s anatomy, Streamlined, mountain-bike-specific saddle design, Side protection to lean against walls
• Handlebars  -  Wide, ergonomically adapted and lightweight aluminum bars for more control, Tapered end to fit a child’s hand, Sandblasted and silver anodized, Width: 570 mm, Rise: 20 mm
• Seatpost  -  27.2 x 250 mm, Anodized aluminum seatpost with insertion marks that indicate the minimum insertion depth, Quick-release seatpost clamp
• Grips  -  Child-friendly because of a small diameter, Single-clamp grip to prevent twisting, Safety zone: extra rubber on the palm-facing portion of the grip for added comfort, 100% silicone for maximum grip
• Seatpost Clamp  -  Quick-release seatpost clamp for easy adjustments, Made from aluminum
• Drivetrain  -  Lightweight, forged aluminum, 4.3" (110 mm), kid-specific cranks with narrow tread (Q-factor), Narrow-wide chainring with 28 teeth in the front, Cassette with 11-32 teeth in the back, Flat pedals made from fiber-reinforced nylon, Chromoly axle and sealed industrial ball bearings
• Brakes  -  Hydraulic disc brakes by Promax, Rotor diameter front/back: 140/140 mm, Ergonomic brake levers designed for a child’s hands
• Weight  -  Bike weight: 21 lbs 11 oz, Max weight: 110 lbs combined weight of the Rider and cargo
• Colors  -  Black, Terra Coppa

*Specifications are subject to change without notice

Extras: Hand wax $30. Base Weld & Epox Repair billed at 1/4 hour $25. Our hourly rate is $100.

See the Montana tuner in action:

EZ Pay Layaway
No Fees, up to 6 months to pay, and Lock in at Early Season or Sale prices.
10% down (min $50) and 10% payment every 2 weeks, pick up product once paid in full. We are very flexible with our terms, so please ask if you need special payment exceptions.

Deposit Refundable if cancelled within 7 days. A gift card credit will be issued for layaways cancelled after 7 days. (clearance items require 50% down and limited to a 30day period)

Great for Christmas, Birthdays, Holidays, and Children learning to Save.
 
Special Financing Offers

6 MONTHS
No interest if paid in full within 6 months*
On purchases with your Synchrony Bank credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required.

Minimum purchase $200

*6 Months
No interest if paid in full within 6 months
Offer applies to single-receipt qualifying purchases of $200 or more. No monthly interest will be charged on promotional balance if you pay the promotional purchase in full within 6 months. If you do not, monthly interest will be charged on the promotional purchase from the purchase date. Depending on the purchase amount, promotion length and payment allocation, the required monthly payments may or may not pay off purchase by the end on promotional period. Regular account terms apply to non-promotional purchases and, after promotion ends, to promotional balance. For new accounts: Purchase APR is 29.99%; Minimum Interest Charge is $2. Existing cardholders should see their credit card agreement for their applicable terms. Subject to credit approval.