The Yamaha YZF-R25 motorcycle specifications include a 249 cc (15.19 cu in) engine, a 6-speed gearbox, and a listed weight of 144 kg (317.5 lb).
Key specifications
The 2015 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha YZF-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 55% lower than the Yamaha database average. Around the 37th 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 39th percentile across Yamaha models.
About 7% larger than the Yamaha database average. Around the 57th 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.
2,090
2,082
Close to average.
720
823
13% below average.
1,135
1,172
3% below average.
1,380
1,416
Close to 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 | 2.40 L (2.54 US qt) |
| Bore/stroke ratio | 1.36:1 (Oversquare) |
Model information
| Category | Sport |
|---|
Engine specifications
| Engine type | Twin, four-stroke |
|---|---|
| Displacement | 249 cc (15.19 cu in) |
| Torque | 22.6 Nm (2.3 kgf-m or 16.7 ft.lbs) @ 10,000 rpm |
| Bore × stroke | 60.0 x 44.1 mm (2.4 x 1.7 inches) |
| Compression ratio | 11.2:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection. EFI |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | TC |
| Starter | Electric |
| Lubrication | Wet sump |
| Oil capacity | 2.40 L (2.54 US qt) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
| Clutch | Wet, multiple-disc coil spring |
Chassis and suspension
| Frame | Diamond |
|---|---|
| Front suspension | Telescopic forks |
| Rear suspension | Linked monoshock with spring preload adjustment |
| Front wheel travel | 130 mm (5.1 inches) |
| Rear wheel travel | 114 mm (4.5 inches) |
| Rake | 25.0° |
| Trail | 95 mm (3.7 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 110/70-17 |
| Rear tire | 140/70-17 |
Dimensions and weight
| Wet weight | 144 kg (317.5 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 | 1,380 mm (54.3 inches) |
| Ground clearance | 160 mm (6.3 inches) |
Fuel and emissions
| Fuel capacity | 14.00 L (3.70 US gal) |
|---|
Electrical and instruments
| Instruments | Multi function LCD instruments |
|---|
Other specifications
| Color options | Matte grey, blue |
|---|
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.