The Yamaha Smax motorcycle specifications include a 155 cc (9.46 cu in) engine, an automatic gearbox, and a listed weight of 148.8 kg (328 lb).
Key specifications
The 2015 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha Smax 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 72% lower than the Yamaha database average. Around the 29th percentile across Yamaha models.
About 20% lighter than the Yamaha database average. Around the 37th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 55th percentile across Yamaha models.
About 42% smaller than the Yamaha database average. Around the 23rd 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.
155 cc — larger displacement than about 29% of Yamaha models.
148.8 kg — heavier than about 37% of Yamaha models, or lighter than about 63%.
795 mm — taller than about 55% of Yamaha models.
7.6 L — larger than about 23% 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.
2,029
2,082
Close to average.
714
823
13% below average.
1,295
1,172
10% above average.
1,405
1,416
Close to average.
795
793
Close to average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-13 |
|---|---|
| Rear tire size | 130/70-13 |
| Front tire width | 120 mm |
| Front tire aspect ratio | 70% |
| Front rim diameter | 13 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 70% |
| Rear rim diameter | 13 in |
| Estimated theoretical fuel range | 261 km |
| Bore/stroke ratio | 0.99:1 (Square) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 155 cc (9.46 cu in) |
| Bore × stroke | 58.0 x 58.7 mm (2.3 x 2.3 inches) |
| Compression ratio | 11.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Single Overhead Cams (SOHC) |
| Starter | Electric & kick |
Transmission and drivetrain
| Gearbox | Automatic |
|---|---|
| Final drive | Belt (final drive) |
Chassis and suspension
| Front suspension | Telescopic fork |
|---|---|
| Rear suspension | Mid ship horizontal positioned rear shock – |
| Front wheel travel | 79 mm (3.1 inches) |
| Rear wheel travel | 60 mm (2.4 inches) |
| Rake | 26.0° |
| Trail | 82 mm (3.2 inches) |
Brakes, wheels and tires
| Front brakes | Single disc. Hydraulic. |
|---|---|
| Rear brakes | Single disc. Hydraulic. |
| Front tire | 120/70-13 |
| Rear tire | 130/70-13 |
Dimensions and weight
| Wet weight | 148.8 kg (328 lb) |
|---|---|
| Seat height | 795 mm (31.3 inches) |
| Overall length | 2,029 mm (79.9 inches) |
| Overall width | 714 mm (28.1 inches) |
| Overall height | 1,295 mm (51.0 inches) |
| Wheelbase | 1,405 mm (55.3 inches) |
Fuel and emissions
| Fuel capacity | 7.57 L (2.00 US gal) |
|---|---|
| Fuel consumption | 2.90 L/100 km (34.5 km/l or 81.11 mpg) |
| Greenhouse gases | 67.3 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Electrical and instruments
| Lights | Dual headlights |
|---|
Other specifications
| Color options | Matte Titan, Ultramarine Blue |
|---|---|
| Factory warranty | 1 Year Limited Factory Warranty |
| Price as new | US$ 3690. MSRP depends on country, taxes, accessories, etc. |
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.