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woom OFF Air 4 Complete Mountain Bike - Kids' 2025

sku# 276332
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woom OFF Air 4 Complete Mountain Bike - Kids' 2025

sku# 276332
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Product Info

The progressive woom OFF Air 4 Complete Mountain Bike is built for young riders ready to push past the basics and chase real adventure. With a confidence-boosting front suspension fork, lightweight yet tough components, and tubeless-ready wheels, this bike is made to keep up with every daring move. From flowy singletrack to gravel paths to after-school pavement sessions, the OFF Air 4 delivers a stable, responsive ride that grows with your rider’s skills.

Product Details

Key Features

Age4 - 6 years

Rider Height46" - 51"

Green Rear Brake

Ergonomic Saddle

Protective Handlebar Grips

BMX-Style Handlebars

Chainguard

Steering LimiterFlexible rubber ring linking the fork and frame to stabilize steering.

Specs

  • Biking Type: Mountain More 
    Mountain
  • Used For: Trail More 
    Trail
  • Suspension: Hardtail More 
    Hardtail
  • Frame Material: Aluminum Alloy More 
    Aluminum Alloy
  • Gearing: 1 x 9
  • Water Bottle Mounts: 0
  • Fork: 6061 Aluminum Rigid
  • Fork Travel (mm): 60
  • Shifters: SRAM X5 Trigger Shifter
  • Rear Derailleur: SRAM X5, 9-Speed
  • Crankset: Alloy, 28t
  • Pedals: Platform
  • Brake Levers: Promax
  • Brake Calipers: Promax Disc
  • Rotors: 140mm Front / 140mm Rear
  • Headset: Fully Integrated 1–1 ⅛″, Sealed Industrial Bearings
  • Handlebar: 570 mm Wide, 20 mm Rise, Lightweight Aluminum, Silver Anodized
  • Bar Tape/Grips: 100% Silicone, Child-Sized Diameter, Single-Clamp, Safety Zone Padding
  • Stem: Forged CNC Aluminum, 50 mm, +/-15° Flip-Flop Design, Height Adjust ±0.47″
  • Saddle: Ergonomically Designed Kids MTB Saddle
  • Seatpost: Alloy 27.2mm
  • Hubs: Aluminum, Sealed Industrial Bearings, Thru-Axle (100 x 15 mm Front, 135 x 12 mm Rear)
  • Rims: Alexrims, Tubeless-Compatible
  • Spokes: 20 G14, Double-Crossed, Aluminum Nipples
  • Tires: Schwalbe Rocket Ron ADDIX SPEED, 20 x 2.25″, Tubeless-Ready
  • Warranty: 10-Year Warranty on Frame, Fork, Stem, and Bars With Registration
Size 4
Rider Height 46"–51"
Effective Top Tube (mm) 457
Head Tube Angle (°) 68
Seat Tube Angle (°) 70
Wheelbase (mm) 838
Complete Weight (lbs) 21.7
Wheel Size 20"

Other Notes

woom products can only be shipped within the United States

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