The Yamaha NMAX 155 motorcycle specifications include a 155 cc (9.46 cu in) engine, an automatic gearbox, and a listed weight of 127 kg (280 lb).
Key specifications
The 2018 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha NMAX 155 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 32% lighter than the Yamaha database average. Around the 25th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 30th percentile across Yamaha models.
About 49% smaller than the Yamaha database average. Around the 17th 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.
127 kg — heavier than about 25% of Yamaha models, or lighter than about 75%.
765 mm — taller than about 30% of Yamaha models.
6.6 L — larger than about 17% 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.
1,955
2,082
6% below average.
740
823
10% below average.
1,115
1,172
5% below average.
1,350
1,416
5% below average.
765
793
4% below average.
125
181
31% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 110/70-13 |
|---|---|
| Rear tire size | 130/70-13 |
| Front tire width | 110 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 |
| Engine oil capacity | 1.00 L (1.06 US qt) |
| Bore/stroke ratio | 0.99:1 (Square) |
Model information
| Category | Scooter |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 155 cc (9.46 cu in) |
| Torque | 14.4 Nm (1.5 kgf-m or 10.6 ft.lbs) @ 6,000 rpm |
| Bore × stroke | 58.0 x 58.7 mm (2.3 x 2.3 inches) |
| Compression ratio | 10.5:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | Transistorised |
| Starter | Electric |
| Lubrication | Wet sump |
| Oil capacity | 1.00 L (1.06 US qt) |
Transmission and drivetrain
| Gearbox | Automatic |
|---|---|
| Final drive | Belt (final drive) |
| Clutch | Dry centrifugal |
Chassis and suspension
| Frame | Backbone |
|---|---|
| Front suspension | Telescopic fork |
| Rear suspension | Unit Swing, monoshock |
| Front wheel travel | 110 mm (4.3 inches) |
| Rear wheel travel | 84 mm (3.3 inches) |
| Rake | 26.0° |
| Trail | 92 mm (3.6 inches) |
Brakes, wheels and tires
| Front brakes | Single disc. Hydraulic. ABS. |
|---|---|
| Rear brakes | Single disc. ABS. |
| Front tire | 110/70-13 |
| Rear tire | 130/70-13 |
Dimensions and weight
| Wet weight | 127 kg (280 lb) |
|---|---|
| Seat height | 765 mm (30.1 inches) |
| Overall length | 1,955 mm (77.0 inches) |
| Overall width | 740 mm (29.1 inches) |
| Overall height | 1,115 mm (43.9 inches) |
| Wheelbase | 1,350 mm (53.1 inches) |
| Ground clearance | 125 mm (4.9 inches) |
Fuel and emissions
| Fuel capacity | 6.60 L (1.74 US gal) |
|---|
Other specifications
| Color options | Black, grey, silver |
|---|
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.