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2024 woom

OFF 4

A 20″ aluminum frame mountain youth bike with promax hydraulic disc brakes.
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Manufacturer Price

849 €
Weight8,6 kg  
FrameAluminum
SuspensionRigid
ForkCarbon
Wheels20″ Aluminum
BrakesPromax Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Handling
nimblestable
OFF 4
Other Mountain Youth bikes
Sizing
One Size

< 130cm

Rider Fit Notes

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Reviews

Summary

The woom off mountain youth bike is praised for its lightweight and responsive design, meticulously engineered for young riders to build confidence on trails. It features stable geometry, age-appropriate components like hydraulic brakes and tubeless-ready wheels, and is noted for its ease of handling and climbing efficiency. However, it may not be suitable for extreme drops or jumps due to limited suspension travel.

Pros
  • Lightweight design

  • Stable and confidence-inspiring geometry

  • Hydraulic brakes with good stopping power

  • Tubeless-ready wheels and tires

  • Dropper post compatibility

Cons
  • Not designed for large drops or gap jumping

  • Limited suspension travel

  • Some components not compatible with other brands

Key Quotes
The matte copper color makes the link between mountain biking and nature in a big way.
Bikerumor logoBikerumor
Every time I've ever had my kid on a Woom bike the thing that comes to the forefront is the stability and ease of control.
Cycling News logoCycling News
It’s an outstanding climber and a joy to ride on the downhill as well
Two Wheeling Tots logoTwo Wheeling Tots

Feedback?

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Two Wheeling Tots
woom OFF and OFF AIR 4, 5 and 6 Review

jul 2025 · Natalie Martins

Discover the woom OFF and OFF AIR, the kids mountain bikes that transform timid riders into confident trail enthusiasts.

Read Review

Bikerumor
Updated Woom OFF and Woom OFF Air Are Made for Mountains

jul 2023 · Jordan Villella

The new version of the Woom OFF and OFF Air kid's mountain bikes get lighter, and a few new features to make them more capable than ever!

Read Review

Cycling News
Woom Off 6 Bike review - A kid’s bike that inspires confidence

jul 2023 · Josh Ross

A real bike for real riders who just happen to be small

Highs
  • Tubeless ready wheels and tyres

  • Hydraulic brakes

  • Dropper post compatible

  • Lightweight frame

  • Age appropriate gearing

  • Upright, stable geometry

Lows
  • Lacks a rear derailleur protector

  • Chainstay protector peels in heat

  • Setting seat angle is a hassle

  • Not setup tubeless from the factory

Read Review

Geometry
Specs
Build
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

ColorsTerra Coppa; Black

Fork

Light carbon fork, 1 – 1 ⅛″ tapered steerer tube, 100 x 15 mm thru axle, Post mount for disc brake

Headset

Fully integrated 1 – 1 ⅛" headset, Sealed industrial bearings

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

Handlebar

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

Saddle

Ergonomically designed to fit a child’s anatomy, Streamlined, mountain-bike-specific saddle design, Side protection to lean against walls

Seatpost

27.2 x 250 mm, Anodized aluminum seatpost with insertion marks that indicate the minimum insertion depth, Quick-release seatpost clamp

TypeRigid

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

Groupset
Brakes

Hydraulic disc brakes by Promax, Rotor diameter front/back: 140/140 mm, Ergonomic brake levers designed for a child’s hands

TypePromax Hydraulic Disc

Wheels
Rims

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

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

Rider Notes
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First added 1 de julio

Last updated 19 de julio

Not listed for 314 days