| General |
| Year | - | 2025 |
| Make Model | Aprilia RS 250 | Yamaha YZF-R9 |
| Dimensions |
| Seat Height | 810 mm / 31.9 in | 831 mm / 32.5 in |
| Wheelbase | 1370 mm / 53.9 in | 1420 mm / 55.9 in |
| Ground Clearance | 135 mm / 5.3 in | 140 mm / 5.5 in |
| Height | 1080 mm / 42.5 in | 1181 mm / 46.5.in |
| Length | 1880 mm / 74.0 in | 1181 mm / 46.5.in |
| Turning Circle | 4.09 m / 13.4 ft | - |
| Width | 690 mm / 27.2 in | 706 mm / 27.8 in |
| Weights & Capacities |
| Wet Weight (kg) | 167 | 195 |
| Dry Weight (kg) | 141 | - |
| Dry Weight | 141 kg / 309 lbs | - |
| Fuel Capacity | 16.5 Litres / 4.4 US gal | 14 Litres / 3.7 US gal |
| Wet Weight | 167 kg / 368 lbs | 195 kg / 430 lbs |
| Performance |
| Top Speed | 209.5 km/h / 130.2 mph | - |
| Braking (100 km/h - 0) | 36.8 m / 120.7 ft | - |
| Braking (60 km/h - 0) | 12.9 m / 42.3 ft | - |
| Max Power | 52.9 kW / 72.5 hp @ 11900 rpm | 117.4 hp / 119PS / 87.5 kW @ 10000 rpm |
| Max Power - Rear Tyre | 47.2 kW / 64.3 hp @ 10400 rpm | - |
| Max Torque | 40 Nm / 4.08 kgf-m / 29.5 lb/ft @ 10750 rpm | 93 Nm / 68.6lb-ft @ 7000 rpm |
| Standing Start ¼ Mile | 12.50 sec / 172.5 km/h / 107.2 mph | - |
| Engine |
| Displacement | 249 cc / 15.2 cu in | 889 cc / 54.2 cu-in |
| Engine Detail | Two stroke, 90° V twin-cylinder, with laminar suction and exhaust valve. Separate lubrication with variable automatic mixer | Four stroke, transverse triple cylinder, DOHC, 4 valves per cylinder |
| Air Filter | Polyurethane filter element | - |
| Bore x Stroke | 56 x 50.6 mm | 78 x 62.1 mm |
| Compression Ratio | 12.0:1 (+/- 0.7) | 11.5:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Fuel Induction | 2 x Ø34 mm Mikuni 34 SS flat side carburetors | Fuel injection with YCC-T |
| Fuel Reserve | 3.5 Litres / 0.9 US gal | - |
| Fuel Type | Lead-free petrol, R.O.N. minimum 95 | - |
| Ignition | CDI | TCI: Transistor Controlled Ignition |
| Lubrication | Oil pump with separate circuit | Wet sump |
| Starter | Kick | Electric |
| EV Specifics |
| Battery Capacity | 12V 4Ah | - |
| Drivetrain |
| Clutch | Oil bath, multiple-disc, with lever control on handlebars | Multiplate assist and slipper clutch |
| Final Drive | Chain, sealed, jointless, DID 520 V6 | O-ring chain |
| Final Drive Ratio | 14:42 (1:3.0) | - |
| Gear Ratios | 1st 11:27 (1:2.454) / 2nd 16:26 (1:1.625) / 3rd 17:21 (1:1.235) / 4th 22:23 (1:1.045) / 5th 24:22 (1:0.916) / 6th 25:21 (1:0.840) | - |
| Gear Shift Pattern | With pedal (L), 1st low, other 5 high | - |
| Primary Drive Ratios | 23:59 (1:2.565) | 1.681 (79/47) |
| Transmission / Drive | 6 Speed, direct drive | Constant mesh 6-speed transmission |
| Chassis |
| Frame Type | - | Aluminium Deltabox |
| Suspension - Front | ø40 mm Inverted fork with adjustable rebound and compression damping. | Telescopic fork, fully adjustable KYB |
| Suspension - Rear | Magnesium alloy swingarm. Monoshock with resevoir, adjustable extension, compression and spring preloading. | Swingarm (link suspension), fully-adjustable KYB |
| Rake | 25° | 22.35° |
| Trail | - | 94 mm / 3.7 in |
| Wheel Travel - Front | 120 mm / 4.7 in | 119 mm / 4.7 in |
| Wheel Travel - Rear | 130 mm / 5.1 in | 117 mm / 4.6 in |
| Maintenance |
| 2-Stroke Engine Oil | IP MAX 2T COMPETITION, or any high-quality oil meeting the ISO-L-ETC++ or API TC++ specifications | - |
| Gearbox Oil Specification | IP FC, SAE 75W-90, or any high-quality oil meeting the API GL-4 specification | - |
| Wheels & Brakes |
| Brakes - Front | 2 x Ø298 mm discs, 4 piston calipers | 2x 320mm hydraulic discs, 4-piston calipers, Brembo Stylema radial master cylinder |
| Brakes - Rear | Single Ø220 mm disc, 2 piston caliper | Single 220mm hydraulic disc, single piston caliper |
| ABS | - | Standard |
| Tyres - Front | 120/60-17 | 120/70 ZR17 M/C (58W) |
| Tyres - Rear | 150/60-17 | 180/55 ZR17 M/C (73W) |
| Wheels - Front | 3.50 x 17 | MT3.5 x 17 M/C |
| Wheels - Rear | 4.50 x 17 | MT5.50 x 17 M/C |