The Yamaha R125 motorcycle specifications include a 124.7 cc (7.61 cu in) engine, a 6-speed gearbox, and a listed weight of 144 kg (317.5 lb).
Key specifications
The 2021 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha R125 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 77% lower than the Yamaha database average. Around the 20th percentile across Yamaha models.
About 23% lighter than the Yamaha database average. Around the 34th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 74th percentile across Yamaha models.
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.
680
823
17% below average.
1,065
1,172
9% below average.
1,355
1,416
4% below average.
825
793
4% above average.
155
181
14% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 110/80-M17 |
|---|---|
| Rear tire size | 140/70-M17 |
| Engine oil capacity | 1.50 L (1.59 US qt) |
| Bore/stroke ratio | 0.89:1 (Undersquare) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 124.7 cc (7.61 cu in) |
| Torque | 11.5 Nm (1.2 kgf-m or 8.5 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 | 1.50 L (1.59 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Assist and slipper clutch |
Chassis and suspension
| Frame | Steel deltabox frame and aluminum swingarm |
|---|---|
| Front suspension | Upside-down telescopic fork, 41 mm |
| Rear suspension | Swingarm, link |
| Front wheel travel | 130 mm (5.1 inches) |
| Rear wheel travel | 114 mm (4.5 inches) |
| Rake | 25.0° |
| Trail | 89 mm (3.5 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 110/80-M17 |
| Rear tire | 140/70-M17 |
| Wheels | Y-spoke wheels |
Dimensions and weight
| Wet weight | 144 kg (317.5 lb) |
|---|---|
| Seat height | 825 mm (32.5 inches) |
| Overall length | 1,955 mm (77.0 inches) |
| Overall width | 680 mm (26.8 inches) |
| Overall height | 1,065 mm (41.9 inches) |
| Wheelbase | 1,355 mm (53.3 inches) |
| Ground clearance | 155 mm (6.1 inches) |
Fuel and emissions
| Fuel consumption | 2.10 L/100 km (47.6 km/l or 112.01 mpg) |
|---|---|
| Greenhouse gases | 48.7 CO 2 g/km. (CO2 – Carbon dioxide emission) |
| Emission details | Euro 5 |
Electrical and instruments
| Lights | LED headlight |
|---|
Other specifications
| Color options | Icon Blue, Tech 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.