| MODEL | YAMAHA YZF-R25 2021 - 2022 |
| Year | 2021 - 2022 |
| Engine Type | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder |
| Displacement / Capacity | 249 cc / 15.1 cu-in |
| Bore X Stroke | 60 x 44.1 mm |
| Compression Ratio | 11.6:1 |
| Cooling System | Liquid cooled |
| Max Power | 26.5 kW / 35.5 hp @ 12000 rpm |
| Max Torque | 26.6 Nm / 19.6 lb-ft @ 10000 rpm |
| Ignition | TCI: Transistor Controlled Ignition |
| Induction | Electronic Fuel Injection |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | Constant Mesh, 6-speed |
| Clutch | Wet, multiple-disc coil spring |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Diamond |
| Front Suspension | 41 mm KYB telescopic fork, 130 mm / 5.1 in travel |
| Rear Suspension | KYB monocross, 124.4 mm / 4.9 in travel |
| Front Brakes | Single 298 mm disc, 2 piston caliper |
| Rear Brakes | Single 220 mm disc |
| DIMENSION SPECS | |
| Overall Length | 2090.4 mm / 82.3 in |
| Overall Width | 720 mm / 28.3 in |
| Overall Height | 1135.3 mm / 44.7 in |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1379.2 mm / 54.3 in |
| Ground Clearance | 160 mm / 6.2 in |
| Dry Weight | — |
| Wet Weight | 166 kg / 365 lbs |
| WHEEL SPECS | |
| Front Tyre | 110/70-17M/C 54S |
| Rear Tyre | 140/70-17M/C 66S |
| FUEL SYSTEM | |
| Fuel Capacity | 14.3 Litres / 3.7 US gal |
| Fuel Consumption | — |
| Top Speed | — |
In 2021-2022 the R25 stayed in its restyled form with Diamond-type frame, upside-down-look bodywork, standard ABS and a 14.3 litre tank. The 249 cc parallel twin and six-speed gearbox carried over unchanged.
