woom OFF 4
Accessories






Get out and explore
The woom OFF 4 gives children aged six years and older a superlight and durable mountain bike for their first go on the pump track and easy cruising through forests and fields. The kink in the top tube makes it easy to get on and off quickly in any situation, thereby giving kids greater safety out and about on the trails. The perfect introduction to mountain biking.
- Size 20"
- Weight 7.8 kg
- Age 6 - 8 years
- Size 118 – 130 cm
- Available editions:
- OFF
Get out and explore









woom frame
The superlight aluminum frame with butted hydroformed tubes has a sporty geometry, long wheelbase and flat steering angle. The kink in the top tube makes it easy to dismount quickly in any situation.
"With the woom OFF and the woom OFF AIR, we are expanding our range to include a mountain bike that makes no compromises when it comes to design and quality."
Bike geometry

Specifications
- Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
- 20" wheels
- Sporty handling: an easy-access low top tube, low centre of gravity and long wheelbase provide good balance and make for a fun, safe riding experience
- 9 speeds
- SRAM X5 trigger shifter
- SRAM X5 rear derailleur
- Light carbon fork
- 1" – 1 1/8" baby taper shaft
- 100 x 15 mm through axles
- Post mount for disc brake
- Superlight woom OFF DISCO TEC double-chamber aluminum rims
- Aluminum hubs with sealed industrial bearings
- Through axles for maximum torsional strength (100 x 15 mm front / 135 x 12 mm rear)
- 20 G14 spokes, double-crossed spoking
- Aluminum nipples
- Fully integrated 1" – 1 1/8" headset
- Sealed industrial bearings
- 20 x 2.25″ Schwalbe Rocket Ron with ADDIX SPEED rubber compound
- Quality MTB tyres with low rolling resistance, maximum grip, good shock absorption and excellent durability
- Car-type valves for easy filling at any gas station
- Forged aluminum
- CNC-machined
- Handlebars attached via two clamps
- +/-15° flip-flop design to adjust handlebar height
- Length: 50 mm
- Ergonomically designed to fit children's pelvis
- Non-toxic
- Side protection to lean against walls
- Wide, ergonomically adapted and lightweight aluminum bars for more control
- Sandblasted and silver anodised
- Width: 600 mm
- Rise: 20 mm
- 27.2 x 250 mm
- Anodised aluminum seatpost with insertion marks that indicate the minimum insertion depth
- Child-friendly thanks to small diameter
- 100% silicone for maximum grip
- Non-toxic
- Screwed-in end plugs
- Made from aluminum
- No risk of turning and/or twisting
- Lightweight, forged 110 mm aluminium 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 fibre-reinforced nylon
- Cr-Mo axle and sealed industrial ball bearings
- 4 mm hex key for stem and seatpost clamp
- 8 mm hex key for front wheel and pedals
- Hydraulic disc brakes by Promax
- Disc diameter front/back: 140/140mm
- Ergonomic brake levers designed for children's hands
- 17.2 lbs (without pedals)
- black
- 112 x 64 x 23 cm
This is how we deliver your bike -
5 min., ready, go!