woom OFF 5

woom OFF 5

An ultralight, durable 24" mountain bike (model year 2021, first gen) with a carbon fork, 9 gears and disc brakes designed for children aged 7 years and over.

Sold out – new stock is on the way!
Colour: black
Delivery time: 5-7 working days incl. VAT plus shipping£720.00
Sold out
  • Free Shipping £99+
  • Money Back Guarantee
  • Two-year Warranty
  • Award-winning Design
Size: 24″
Weight: 8.6 kg (19 lb)
Top features: Child-specific geometry, carbon fork, adjustable stem

Age: 7 – 11 years
Height: 128 - 145 cm (4.2 - 4.8 in)

Time for mountains!

Specifications

Frame

  • Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
  • 24″ wheels
  • Confidence-inspiring handling: low entry, low center of gravity and long wheelbase provide good balance and make for a fun, safe ride

Gears

  • 9 gears
  • SRAM X5 trigger shifter
  • SRAM X5 rear derailleur

Fork

  • Lightweight carbon fork
  • 1 1/8″–1″ baby taper steerer tube
  • 100 x 15 mm thru-axle
  • Post mount for disc brake

Wheels

  • Superlight woom OFF DISCO TEC double-chamber aluminum rims
  • Aluminum hubs with sealed industrial-grade bearings
  • Thru-axles for maximum torsional strength (100 x 15 mm front/135 x 12 mm rear)
  • 20 G14 spokes, double-crossed spoking
  • Aluminum nipples

Headset

  • Fully integrated 1 1/8″–1″ headset
  • Sealed industrial-grade bearings

Tires

  • 24 x 2.35″ Schwalbe Rocket Ron with ADDIX SPEED rubber compound
  • Quality MTB tires with low rolling resistance, maximum grip, good shock absorption and excellent durability
  • Car-type valves allow the tires to be pumped up at petrol stations

Stem

  • Forged aluminum
  • CNC-machined
  • Handlebars attached via two clamps
  • +/-15° flip-flop design to adjust handlebar height
  • Length: 50 mm

Saddle

  • Ergonomically designed to fit children's pelvises
  • Side protection for leaning against walls

Handlebars

  • Wide, ergonomically adapted and lightweight aluminum bars for more control
  • Sandblasted and anodized in silver
  • Width: 600 mm
  • Rise: 20 mm

Seatpost

  • 27.2 x 250 mm
  • Anodized aluminum seatpost with minimum insertion mark

Grips

  • Child-friendly thanks to small diameter
  • 100% silicone for maximum grip
  • Screwed-in end plugs

Seatpost clamp

  • Made of aluminum
  • Extra-long quick-release lever, easy to operate requiring only minimal strength
  • No risk of turning and/or twisting

Drivetrain

  • Lightweight, forged 130 mm aluminum cranks with narrow tread (Q-factor)
  • Narrow-wide chainring with 28 teeth
  • Cassette with 11–34 teeth
  • Platform pedals made from fiber-reinforced nylon
  • Cr-Mo axle and sealed industrial-grade ball bearings

Brakes

  • Hydraulic disc brakes by Promax
  • Rotor diameter front/back: 140/140 mm
  • Ergonomic brake levers designed for children's hands

Included tools

  • 4 mm hex key for stem and seatpost clamp
  • 8 mm hex key for front wheel and pedals

Weight

  • 8.6 kg (without pedals)

Weight limit

80 kg

Colors

  • Black

Shipping dimensions

  • 129 x 68.5 x 23 cm

Geometry

Assembly Instructions

Your OFF-road adventure can begin shortly!

In just a few steps, your woom OFF will be ready for its first ride. Check out this video to find out exactly what to do.

Assembly instructions
Instructions for use

Find more information in our Service & Info area.

Features & Highlights

woom Frame

The superlight aluminum frame with butted hydroformed tubes has impeccable MTB genes with modern geometry, a long wheelbase and a slack head tube angle.

The kink in the top tube makes it easy to dismount quickly in any situation.

woom OFF Carbon Fork

Superlight and super stylish – the carbon fork offers maximum stability with minimum weight. Multidirectional carbon fibers ensure plenty of torsional strength when steering and braking. That makes the bike strong and stable even on the roughest terrain.

Brakes

The easy-to-modulate disc brakes ally with the special brake levers designed for children's hands to increase safety and control in all situations, including on rough terrain and in wet conditions.

woom Stem

Specially developed from forged aluminum, the stem pairs the ultimate stiffness with the lowest possible weight. Thanks to its flip-flop design, there’s the option to raise the height of the bars simply by inverting it.

woom saddle

The saddle is one of the most important points of contact between the child and the bike. It significantly affects the feeling when riding. That is why we have designed our saddle to fit the pelvis of children and give them a slightly stretched riding position. Perfect for getting the most out of their ride!

During a redesign of our products, the security seatpost clamp shown here was replaced with a quick-release seatpost clamp. The result: quick and easy saddle height adjustments – no tools required.

Gears

Smooth shifting comes courtesy of our precise and easy-to-operate transmission. The SRAM X5 drivetrain has nine gears a wide range 11–34T cassette combined with a 28T chainring up front.

Tires

Built with the ADDIX SPEED rubber compound, the valued Schwalbe mountain bike tires deliver the ultimate performance, uniting a low rolling resistance with superior grip, cushioning and durability.

Trigger shifter

The easy-to-operate SRAM trigger shifter makes light work for children’s thumbs by shifting efficiently through the nine gears with precision.

Sticker set

Ride in style! Every woom OFF is delivered complete with a set of stickers in four colors. Personalize your rims and top tube to ride in your unique style!

What's in the box?

Our woom bikes don't come with any additional accessories. You can find useful extras, including kickstands and mudguards, in our online shop.

If your child plans on cycling on public roads and streets, their bike may need to meet certain standard requirements before it can be considered legal in your country of residence. In many countries, bikes must be equipped with a bike bell, front and rear lights, and wide-angle Z reflectors. As rules for cyclists and their equipment vary from country to country, find out about the regulations applicable to riding a woom bike in road traffic in your country or region, particularly regarding the use of lights, reflectors and other obligatory safety equipment.

Guarantee information

Legal right to cancel goods & services

Ratings & Reviews

5.00Based on 2 reviews

I want to give props to Woom bikes and the company in general. I love Woom! They are an amazing value and great customer service. We had a Woom Off 4 that both our girls rode until they were too tall. I purchased it for ~$700 in 2020, and we sold it in 2025 for $450. I'm sure it is still being ridden on the Socal flow trails today. We purchased a Woom 5 Off Air for $880 in 2021, and both girls used that until a couple weeks ago when they upgraded to 27.5" wheels. Another awesome bike that had them riding trails around the western US. I just sold that for $700. These bikes maintain their value better than any I've seen. We also have a Woom helmet, and the harness system broke– Woom immediately sent out a replacement harness (for free!) and we'll get another couple years with this helmet. I couldn't be happier with the quality and customer service. The girl's new (bigger) bikes are WAY heavier than the Woom. I highly recommend a Woom investment to anyone with kids interested in biking. You won't be disappointed!

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Stellar machine

My kids have been riding Woom originals from the size 2 on up and they’ve been more than capable on all dirt and gravel paths, but this OFF 5 is something else! Even with the carbon fork, my 9 y/o did a 10 mile mtb race last summer and it was awesome!

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