The Yamaha YBR 125 motorcycle specifications include a 125 cc (7.63 cu in) engine, power of 10 hp (7.3 kW) @ 8,000 rpm, a 5-speed gearbox, and a listed weight of 106 kg (233.7 lb).
Key specifications
The 2005 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha YBR 125 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 81% lower than the Yamaha database average. Around the 16th percentile across Yamaha models.
About 77% lower than the Yamaha database average. Around the 25th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 39th percentile across Yamaha models.
About 8% smaller than the Yamaha database average. Around the 45th 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.
10 hp — more powerful than about 16% of Yamaha models with power data.
125 cc — larger displacement than about 25% of Yamaha models.
780 mm — taller than about 39% of Yamaha models.
12 L — larger than about 45% of Yamaha fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 2.75-18 42P |
|---|---|
| Rear tire size | 90/90-18M/C 57P |
| Estimated theoretical fuel range | 480 km |
| Power-to-weight ratio | 0.094 hp/kg |
| Power-to-weight | 94.3 hp/tonne |
| Specific power | 80.0 hp/L |
| Bore/stroke ratio | 1.00:1 (Square) |
Model information
| Category | Naked bike |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 125 cc (7.63 cu in) |
| Power | 10 hp (7.3 kW) @ 8,000 rpm |
| Torque | 10.0 Nm (1.0 kgf-m or 7.4 ft.lbs) @ 6,000 rpm |
| Bore × stroke | 54.0 x 54 mm (2.1 x 2.1 inches) |
| Compression ratio | 10.0:1 |
| Cooling system | Air |
| Fuel system | Carburettor. Mikuni VM22SH/1 |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | Electronic |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Expanding brake (drum brake) |
| Front tire | 2.75-18 42P |
| Rear tire | 90/90-18M/C 57P |
Dimensions and weight
| Dry weight | 106 kg (233.7 lb) |
|---|---|
| Seat height | 780 mm (30.7 inches) |
Fuel and emissions
| Fuel capacity | 12.00 L (3.17 US gal) |
|---|---|
| Fuel consumption | 2.50 L/100 km (40.0 km/l or 94.09 mpg) |
| Greenhouse gases | 58.0 CO 2 g/km. (CO2 – Carbon dioxide emission) |
Performance
| Top speed | 100.0 km/h (62.1 mph) |
|---|---|
| Power/weight ratio | 0.0943 hp/kg |
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.