Woom OFF 5
Full speed ahead on the ascent. Complete control on the descent! The Woom OFF 5 (second generation, 2023 model) is an ultralight and durable 24" mountain bike, perfect for young riders aged 7 to 11 years and 128 - 145...
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Full speed ahead on the ascent. Complete control on the descent!
The Woom OFF 5 (second generation, 2023 model) is an ultralight and durable 24" mountain bike, perfect for young riders aged 7 to 11 years and 128 - 145 cm tall. Weighing just 9.1 kg, it features a carbon fork for strength and agility, 9 gears for smooth shifting, and hydraulic disc brakes with child-specific levers for effortless, powerful stopping. Designed for adventure, it includes ergonomic grips and saddle, tubeless-ready wheels, a flip-flop stem, and a dropper-post-ready seat tube, making it the perfect companion for young mountain bikers pushing their limits.
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
Headset
Fully integrated 1 1/8″–1″ headset
Sealed industrial-grade bearings
Handlebars
Wide, ergonomically adapted and lightweight aluminum bars for more control
Sandblasted and anodized in silver
Width: 600 mm
Rise: 20 mm
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
Weight limit
80 kg
Gears
9 gears
SRAM X5 trigger shifter
SRAM X5 rear derailleur
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
Seatpost
27.2 x 250 mm
Anodized aluminum seatpost with minimum insertion mar
Brakes
Hydraulic disc brakes by Promax
Rotor diameter front/back: 140/140 mm
Ergonomic brake levers designed for children's hands
Fork
Lightweight carbon fork
1 1/8″–1″ baby taper steerer tube
100 x 15 mm thru-axle
Post mount for disc brake
Stem
Forged aluminum
CNC-machined
Handlebars attached via two clamps
+/-15° flip-flop design to adjust handlebar height
Length: 50 mm
Grips
Child-friendly thanks to small diameter
100% silicone for maximum grip
Screwed-in end plugs
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
Saddle
Ergonomically designed to fit children's pelvises
Side protection for leaning against walls
Seatpost clamp
Made of aluminum
Extra-long quick-release lever, easy to operate requiring only minimal strength
No risk of turning and/or twisting
Weight
8.6 kg (without pedals)
Pickup & returns
Ride it through work
Employees and self-employed can lease bikes through o2o, Cyclis, b2bike, Lease a Bike or Joule. It's up to 40% cheaper than buying.
Questions
Riding in Brussels? Here's what people ask us most. Something else? Ask us.
Can I test ride before buying?
Yes. Come by the shop in Laeken, Tuesday to Saturday, and try the bikes we have in stock. Book a test ride to make sure your model and size are ready.
Which bike handles Brussels' hills and cobbles?
Brussels is hillier than it looks. For daily climbs, choose an e-bike with a mid-drive motor and wider tyres that cope with cobbles and tram rails. Tell us your route and we'll suggest the right motor, battery and gearing, then you can try it on a test ride.
How do I protect my bike against theft in Brussels?
Use two good locks, for example a frame lock plus a solid U-lock or chain attached to something fixed. Register your frame number with MyBike, and at home look for a secure bike box or bike parking in your commune. Ask us about locks and theft insurance when you buy.
Can I lease this bike?
Yes, through your employer or as self-employed via o2o, Cyclis, b2bike, Lease a Bike or Joule. It's up to 40% cheaper than buying. How leasing works.
Do I get a bike allowance for cycling to work?
Most employees who cycle to work are entitled to a bike allowance from their employer, electric bikes included. In 2026 it is tax-free up to €0.37 per km, capped at €3,690 a year. Your sector or company sets the exact amount.
What's the difference between an e-bike and a speed pedelec?
An e-bike assists you up to 25 km/h: no number plate, no licence, helmet recommended. A speed pedelec assists up to 45 km/h and needs a number plate, insurance, a helmet and an AM driving licence (a car licence includes it). Not sure which suits your commute? Ask us.
Is the bike ready to ride when I pick it up?
Yes. Our workshop assembles, checks and adjusts every bike to your size before you collect it at the Laeken shop.
Who services my bike after I buy it?
Our in-house workshop in Laeken. Bring your bike in for a check-up, repair or warranty question, and we deal with the brand for you.
Can I return my bike?
Yes, within 14 days. Read our returns policy.
Are pedals included?
We provide pedals so you can hit our test track right away. Need help finding the right pair? Foldable, griptape, freeride or clip-in: we've got them all.
Can I change parts or customize the paint?
Saddle, bars, tyres, wheels or a full custom paint job: bring your ideas and we make it happen.
Can I get a special offer, bundle or trade-in?
Ask us for a tailored offer, including a sweet deal on accessories or a trade-in of your old bike.
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