The Yamaha Neos 4S motorcycle specifications include a 49.4 cc (3.01 cu in) engine, an automatic gearbox, and a listed weight of 95 kg (209.4 lb).
Key specifications
How the Yamaha Neos 4S compares
This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.
About 91% lower than the Yamaha database average. Around the 7th percentile across Yamaha models.
About 49% lighter than the Yamaha database average. Around the 10th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 49th percentile across Yamaha models.
About 59% smaller than the Yamaha database average. Around the 10th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
49 cc — larger displacement than about 7% of Yamaha models.
95 kg — heavier than about 10% of Yamaha models, or lighter than about 90%.
790 mm — taller than about 49% of Yamaha models.
5.4 L — larger than about 10% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
1,840
2,082
12% below average.
1,275
1,416
10% below average.
790
793
Close to average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-12 |
|---|---|
| Rear tire size | 130/70-12 |
| Front tire width | 120 mm |
| Front tire aspect ratio | 70% |
| Front rim diameter | 12 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 70% |
| Rear rim diameter | 12 in |
| Bore/stroke ratio | 0.87:1 (Undersquare) |
Model information
| Year released | 2009 |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 49.4 cc (3.01 cu in) |
| Torque | 3.2 Nm (0.3 kgf-m or 2.3 ft.lbs) @ 7,000 rpm |
| Bore × stroke | 38.0 x 43.6 mm (1.5 x 1.7 inches) |
| Compression ratio | 12.0:1 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Ignition | TCI |
| Starter | Electric & kick |
| Lubrication | Wet sump |
Transmission and drivetrain
| Gearbox | Automatic |
|---|---|
| Final drive | Belt (final drive) |
Chassis and suspension
| Front suspension | Telescopic fork |
|---|---|
| Rear suspension | Unit swing |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 120/70-12 |
| Rear tire | 130/70-12 |
Dimensions and weight
| Wet weight | 95 kg (209.4 lb) |
|---|---|
| Seat height | 790 mm (31.1 inches) |
| Overall length | 1,840 mm (72.4 inches) |
| Wheelbase | 1,275 mm (50.2 inches) |
Fuel and emissions
| Fuel capacity | 5.40 L (1.43 US gal) |
|---|
Other specifications
| Comments | Also called Neo´s 4 Stroke |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.