The Yamaha R25 motorcycle specifications include a 250 cc (15.26 cu in) engine, power of 35.5 hp (25.9 kW) @ 12,000 rpm, a 6-speed gearbox, and a listed weight of 166 kg (366 lb).
Key specifications
How the Yamaha R25 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 33% lower than the Yamaha database average. Around the 46th percentile across Yamaha models.
About 55% lower than the Yamaha database average. Around the 41st percentile across Yamaha models.
About 11% lighter than the Yamaha database average. Around the 42nd percentile across Yamaha models.
Very close to the Yamaha database average. Around the 39th percentile across Yamaha models.
About 7% larger than the Yamaha database average. Around the 57th 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.
35.5 hp — more powerful than about 46% of Yamaha models with power data.
250 cc — larger displacement than about 41% of Yamaha models.
166 kg — heavier than about 42% of Yamaha models, or lighter than about 58%.
780 mm — taller than about 39% of Yamaha models.
14 L — larger than about 57% 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.
2,090
2,082
Close to average.
720
823
13% below average.
1,135
1,172
3% below average.
1,325
1,416
6% below average.
780
793
Close to average.
160
181
11% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 110/70-17 |
|---|---|
| Rear tire size | 140/70-17 |
| Front tire width | 110 mm |
| Front tire aspect ratio | 70% |
| Front rim diameter | 17 in |
| Rear tire width | 140 mm |
| Rear tire aspect ratio | 70% |
| Rear rim diameter | 17 in |
| Engine oil capacity | 2.10 L (2.22 US qt) |
| Power-to-weight ratio | 0.214 hp/kg |
| Power-to-weight | 213.9 hp/tonne |
| Specific power | 142.0 hp/L |
| Bore/stroke ratio | 1.36:1 (Oversquare) |
Model information
| Year released | 2023 |
|---|---|
| Category | Sport |
Engine specifications
| Engine type | Twin, four-stroke |
|---|---|
| Displacement | 250 cc (15.26 cu in) |
| Power | 35.5 hp (25.9 kW) @ 12,000 rpm |
| Torque | 23.6 Nm (2.4 kgf-m or 17.4 ft.lbs) @ 10,000 rpm |
| Bore × stroke | 60.0 x 44.1 mm (2.4 x 1.7 inches) |
| Compression ratio | 11.6:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | TCI |
| Starter | Electric |
| Lubrication | Wet sump |
| Oil capacity | 2.10 L (2.22 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet, multiple-disc coil spring assist and slipper clutch |
Chassis and suspension
| Frame | Diamond |
|---|---|
| Front suspension | Upside-down telescopic fork, 37 mm |
| Rear suspension | Linked-type Monocross |
| 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. Optional ABS |
|---|---|
| Rear brakes | Single disc. Optional ABS |
| Front tire | 110/70-17 |
| Rear tire | 140/70-17 |
| Wheels | Alloy rims, blue. |
Dimensions and weight
| Wet weight | 166 kg (366 lb) |
|---|---|
| Seat height | 780 mm (30.7 inches) |
| Overall length | 2,090 mm (82.3 inches) |
| Overall width | 720 mm (28.3 inches) |
| Overall height | 1,135 mm (44.7 inches) |
| Wheelbase | 1,325 mm (52.2 inches) |
| Ground clearance | 160 mm (6.3 inches) |
Fuel and emissions
| Fuel capacity | 14.00 L (3.70 US gal) |
|---|
Other specifications
| Color options | Racing Blue, Metallic Black |
|---|---|
| Comments | Windscreen. Traction control. Ride modes track and street. Sold in Asia. |
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.