20''
7.8 kg (17.2 lbs)
Disc brake, Carbon fork
Age :6 - 8 years
Woom Bikes
Woom Off 4
An ultralight and durable 20" mountain bike with a carbon fork, 9 gears and disc brakes designed for children aged 6 years and over.
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.
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.
woom fork
Superlight and super stylish – the carbon fork offers maximum stability with minimum weight. Multidirectional carbon fibres ensure plenty of torsional strength when steering and braking. That makes the bike strong and stable even on the roughest terrain.
Brakes
The disc brakes with their excellent modulation combined with special brake levers designed for children's hands increase safety and control in all situations, including on rough terrain and in wet conditions.
woom stem
The specially developed stem from forged aluminum guarantees maximum stiffness with minimal weight. Thanks to its flip-flop design it can be turned over and mounted upside down to adjust the handlebar height.
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 our saddle is designed to fit the pelvis of children in this age group and give them a slightly stretched-out riding position. Perfect for a unique riding experience!
Gears
The precise and easy-to-operate gear system allows smooth shifting. The SRAM X5 system has nine gears suitable for a wide range of gradients thanks to 28 teeth in the front and an 11-32 cassette in the back.
Tyres
The high-quality Schwalbe mountain bike tyres with ADDIX SPEED rubber compound offer an ideal combination of low rolling resistance, maximum grip, good shock absorption and excellent durability.
Trigger shifter
The easy-to-use SRAM trigger shifter allows riders to shift smoothly and reliably through the nine gears using their thumb.
Sticker set
Pimp your bike! Every woom OFF is delivered complete with a set of stickers in four colours. Place them on your rims and top tube to personalise your bike!
118 - 130 cm (3.87 - 4.3')
Frame
- 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
Gears
- 9 speeds
- SRAM X5 trigger shifter
- SRAM X5 rear derailleur
Fork
- Light carbon fork
- 1" – 1 1/8" baby taper steerer tube
- 100 x 15 mm through axles
- Post mount for disc brake
Wheels
- Superlight woom OFF DISCO TEC double-chamber aluminum rims
- Aluminum hubs with sealed industrial-grade 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
Headset
- Fully integrated 1" – 1 1/8" headset
- Sealed industrial-grade bearings
Tyres
- 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
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 pelvis
- Side protection to lean against walls
Handlebars
- Wide, ergonomically adapted and lightweight aluminum bars for more control
- Sandblasted and silver anodised
- Width: 600 mm
- Rise: 20 mm
Seatpost
- 27.2 x 250 mm
- Anodised aluminum seatpost with insertion marks that indicate the minimum insertion depth
Grips
- Child-friendly thanks to small diameter
- 100% silicone for maximum grip
- Screwed-in end plugs
Seatpost Clamp
- Made from aluminum
- No risk of turning and/or twisting
Drive
- Lightweight, forged 110 mm aluminium cranks with narrow 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
Enclosed tools
- 4 mm hex key for stem and seatpost clamp
- 8 mm hex key for front wheel and pedals
Brakes
- Hydraulic disc brakes by Promax
- Disc diameter front/back: 140/140mm
- Ergonomic brake levers designed for children's hands
Weight
- 17.2 lbs (without pedals)
Colours
- black
Shipping dimensions
- 112 x 64 x 23 cm
All Order over 200Eur are shipped for FREE in most of Europe! More information at the checkout!
All products can be returned within 14 days! Please read return policy for more details!
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