The Yamaha WR155R motorcycle specifications include a 155 cc (9.46 cu in) engine and a 6-speed gearbox.
Key specifications
The 2020 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha WR155R 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 35% smaller than the Yamaha database average. Around the 28th 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.
8.5 L — larger than about 28% of Yamaha fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Bore/stroke ratio | 0.99:1 (Square) |
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Model information
| Category | Enduro / offroad |
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Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 155 cc (9.46 cu in) |
| Torque | 14.3 Nm (1.5 kgf-m or 10.5 ft.lbs) @ 6,500 rpm |
| Bore × stroke | 58.0 x 58.7 mm (2.3 x 2.3 inches) |
| Compression ratio | 11.2:1 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | TCI |
| Starter | Electric |
| Lubrication | Wet sump |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet, multipate |
Chassis and suspension
| Frame | Steel double cradle |
|---|---|
| Front suspension | Telescopic forks |
| Rear suspension | Swingarm, (link suspension), Monoshock |
Brakes, wheels and tires
| Front brakes | Single disc. Hydraulic. |
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| Rear brakes | Single disc. Hydraulic. |
Fuel and emissions
| Fuel capacity | 8.50 L (2.25 US gal) |
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Other specifications
| Color options | Blue, Black |
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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.