The woom GO 3 AUTOMAGIC is designed for young riders who are ready to pedal independently while keeping gear changes simple. Its lightweight aluminium frame, low riding position and child-specific geometry are shaped around easy control and confidence.
Automatic Sturmey-Archer two-speed hub gearing changes ratio without a manual shifter, helping children tackle gentle climbs and build speed on flatter ground without having to think about changing gear. The 16in Schwalbe Little Joe tyres combine low rolling resistance with useful grip and reflective sidewalls.
Small-hand brake levers, independently operated mini V-brakes, a steering limiter and slim lock-on grips put safety and control at the centre of the design. Adjustable cockpit and saddle-height markings also make it easier to keep the bike set up as a child grows.
Features & Benefits:
- Automatic Two-Speed Gearing: Sturmey-Archer hub gearing shifts automatically, giving young riders a wider usable gear range without adding a manual shifter.
- Child-Specific Control: Mini V-brakes, ergonomic small-hand levers and a steering limiter help make braking and steering feel intuitive.
- Light and Easy to Handle: A lightweight aluminium frame, 16in wheels and low riding position support stable, confidence-building riding.
Full Specification:
- Frame: Lightweight AA 6061 aluminium; 16in wheels; low entry and child-specific geometry
- Fork: Lightweight aluminium unicrown fork; 1in steerer
- Number of Gears: 2
- Chainset: Forged 95mm aluminium cranks
- Chainrings: 18T
- Rear Cassette: 12T rear sprocket
- Bottom Bracket: Sealed cartridge
- Pedals: Narrow flat-platform plastic pedals
- Rims: Ultralight aluminium rims; 16 spokes
- Front Hub: Lightweight aluminium hub with sealed bearings
- Rear Hub: Sturmey-Archer Automatic A2 two-speed hub with sealed bearings
- Front Tyre: Schwalbe Little Joe 16 x 1.4in
- Rear Tyre: Schwalbe Little Joe 16 x 1.4in
- Brakes: Two independently operated mini V-brakes with ergonomic child-specific levers
- Handlebars: Lightweight aluminium BMX-style bars; 500mm width
- Grips or Bar Tape: Slim ergonomic lock-on grips with protective oversized ends
- Headset: Fully integrated 1in headset with sealed bearings
- Stem: Forged aluminium, 40mm, +15 degrees
- Saddle: Ergonomic, waterproof and weather-resistant saddle
- Seatpost: Anodised aluminium with adjustment marking
- Inside Leg or Age Range: 4–6 years
- Weight: 6.2kg without pedals
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.
Information for woom kids' bike range:
Child-specific geometry – Lightweight frames, low riding positions and child-friendly geometry make woom bikes easy to handle, helping young riders feel stable and confident.
Child-specific cranks – Proportionally sized cranks and a narrow pedal position encourage a natural, comfortable and efficient pedalling motion.
Smaller grips – Slim ergonomic grips are designed specifically for smaller hands, providing comfortable and secure control.
Child-specific brakes – Easy-reach brake levers require little hand strength, making braking safer and easier for young riders.
Steering limiter [Selected smaller models] – Helps prevent the handlebars from turning too far, reducing the risk of over-steering while children develop their bike-handling skills.
Easy-to-use gears [Geared models] – Child-friendly shifting controls make changing gear simple and intuitive for developing riders.
Size Chart for woom Go Bikes
| Go 2 | Go 3 | Go 4 |
| Tyre/wheel size | 14" | 16" | 20" |
| Cockpit/handlebar height | 628mm (22.7") | 698mm (27.5") | 803mm (31.6") |
| Steering angle | 68º | 68º | 68º |
| Horizontal top tube length | 360.5mm (14.2″) | 407.1mm (15″) | 441.9mm (17.4″) |
| Wheelbase | 641mm (25.2″) | 711.2mm (28″) | 840mm (33.1″) |
| Seat tube angle | 68º | 68º | 72º |
| Minimum saddle height | 394mm (15.5″) | 482mm (19″) | 568mm (22.4″) |
| Max. saddle height | 489mm (19.3″) | 637mm (25.1″) | 729mm (28.7″) |
| Crank arm length | 80mm (3.2″) | 95mm (3.7″) | 110mm (4.3″) |
| Handlebar adjustment | +/-10° | +/-10° | +/-10° |
| Standover heigh | 350mm (13.8″) | 410mm (16.1″) | 490mm (19.3″) |
Warranty Information for woom:
woom offer a standard 2-year warranty that applies automatically from the day you buy a new woom bike. You need to provide the purchase receipt to make a claim under the warranty. Make sure you keep it somewhere safe.
Members of the woom Riders Club can extend the standard 2-year warranty on aluminum frames, rigid forks, handlebars, stems and cranks to 10 years for free. Log into the woom Riders Club here and register your woom bike within 9 weeks of buying it.
The 2-year and 10-year warranties can be transferred to you when you buy a used bike. The warranty period still applies from the date on which the bike was purchased as new.
Click here to find out more and to read the full warranty terms and conditions.