The Yamaha YZF-R 125 motorcycle specifications include a 124.7 cc (7.61 cu in) engine, power of 14.8 hp (10.8 kW) @ 9,000 rpm, a 6-speed gearbox, and a listed weight of 138 kg (304.2 lb).
Key specifications
The 2009 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha YZF-R 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 72% lower than the Yamaha database average. Around the 26th percentile across Yamaha models.
About 77% lower than the Yamaha database average. Around the 20th percentile across Yamaha models.
About 26% lighter than the Yamaha database average. Around the 32nd percentile across Yamaha models.
Very close to the Yamaha database average. Around the 71st percentile across Yamaha models.
About 6% larger than the Yamaha database average. Around the 51st 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.
14.8 hp — more powerful than about 26% of Yamaha models with power data.
125 cc — larger displacement than about 20% of Yamaha models.
138 kg — heavier than about 32% of Yamaha models, or lighter than about 68%.
818 mm — taller than about 71% of Yamaha models.
13.8 L — larger than about 51% 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.
2,015
2,082
3% below average.
660
823
20% below average.
970
1,172
17% below average.
1,355
1,416
4% below average.
818
793
3% above average.
155
181
14% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 100/80-M17 |
|---|---|
| Rear tire size | 130/70-M17 |
| Engine oil capacity | 1.10 L (1.16 US qt) |
| Power-to-weight ratio | 0.107 hp/kg |
| Power-to-weight | 107.2 hp/tonne |
| Specific power | 118.7 hp/L |
| Bore/stroke ratio | 0.89:1 (Undersquare) |
Model information
| Category | Sport |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 124.7 cc (7.61 cu in) |
| Power | 14.8 hp (10.8 kW) @ 9,000 rpm |
| Torque | 12.2 Nm (1.2 kgf-m or 9.0 ft.lbs) @ 8,000 rpm |
| Bore × stroke | 52.0 x 58.6 mm (2.0 x 2.3 inches) |
| Compression ratio | 11.2:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | TCI |
| Starter | Electric |
| Lubrication | Wet sump |
| Oil capacity | 1.10 L (1.16 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet, multiple-disc coil spring |
Chassis and suspension
| Frame | Steel Deltabox |
|---|---|
| Front suspension | Telescopic forks |
| Rear suspension | Swingarm (monocross) |
| Front wheel travel | 130 mm (5.1 inches) |
| Rear wheel travel | 125 mm (4.9 inches) |
| Trail | 86 mm (3.4 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 100/80-M17 |
| Rear tire | 130/70-M17 |
Dimensions and weight
| Wet weight | 138 kg (304.2 lb) |
|---|---|
| Seat height | 818 mm (32.2 inches) |
| Overall length | 2,015 mm (79.3 inches) |
| Overall width | 660 mm (26.0 inches) |
| Overall height | 970 mm (38.2 inches) |
| Wheelbase | 1,355 mm (53.3 inches) |
| Ground clearance | 155 mm (6.1 inches) |
Fuel and emissions
| Fuel capacity | 13.80 L (3.65 US gal) |
|---|
Other specifications
| Color options | Red, blue, black |
|---|
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.