| General |
| Year | 2019 | 2025 |
| Make Model | Aprilia RSV-4 Factory | Harley Davidson Sportster S |
| Dimensions |
| Seat Height | 853 mm / 33.5 in | 765 mm / 30.1 in |
| Wheelbase | 1441.6 mm / 56.7 in | 1520 mm / 59.8 in |
| Ground Clearance | 130 mm / 5.1 in | 90 mm / 3.5 in |
| Height | - | 1085 mm / 42.7 in |
| Length | 2055 mm / 80.9 in | 2270 mm / 89.42 in |
| Seat Height (Laden) | - | 734 mm / 28.9 in |
| Width | 735 mm / 28.9 in (at the handlebar) | 840 mm / 33.1 in |
| Weights & Capacities |
| Wet Weight (kg) | 204 | 228 |
| Dry Weight (kg) | 182 | 221 |
| Dry Weight | 182 kg / 401 lbs | 221 kg / 487 lbs |
| Fuel Capacity | 18.5 Litres / 4.9 US gal | 11.7 Litres / 3.1 US gal |
| Wet Weight | 204 kg / 450 lbs | 228 kg / 502 lbs |
| Performance |
| Max Power | 217 hp / 159.6 kW @ 13200 rpm | 121 hp / 90 kW @ 7500 rpm |
| Max Torque | 122 Nm / 90 lb-ft @ 11000 rpm [115 Nm at 10,500 rpm] | 126 Nm / 93 lb-ft @ 6000 rpm |
| Engine |
| Displacement | 1077 cc / 85.7 cu-in | 1252 cc / 76.4 cu-in |
| Engine Detail | Four stroke, longitudinal 65° V four , DOHC, 4 valves per cylinder | Four stroke, 60° V-twin Revolution Max 1250, Chain-driven, DOHC, hydraulic self-adjusting lifters, intake & exhaust VVT, four valves per cylinder |
| Bore x Stroke | 81 x 52.3 mm | 105 x 72.3 mm |
| Compression Ratio | 13.6:1 | 12.0:1 |
| Cooling System | Liquid cooled | Liquid cooled |
| Emissions | Euro 4 | - |
| Exhaust | 4 into 2 into 1 layout, two lambda probes, lateral single silencer with ECU-controlled bypass valve and integrated trivalent catalytic converter | 2-into-1-into-2, catalyst in muffler |
| Fuel Induction | Airbox with front dynamic air intakes. 4 Marelli 48-mm throttle bodies with 8 injectors and latest generation Ride-By-Wire engine management. Choice of three different engine maps selectable by the rider with bike in motion: Track, Sport, Race | Electronic Sequential Port Fuel Injection (ESPFI) |
| Fuel Reserve | 4 Liters / 1.1 US gal | - |
| Ignition | Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and °stick-coil"-type coils | - |
| Lubrication | Wet sump lubrication system with oil radiator and two oil pumps (lubrication and cooling) | Semi-dry sump |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Multi-disc oil bath with mechanical slipper system | Mechanical, 8 plate wet, assist & slip, 1090N |
| Final Drive | Chain | Belt, 34/80 ratio |
| Gear Ratios | - | 1st 12.21 / 2nd 9.022 / 3rd 6.994 / 4th 5.641 / 5th 4.731 / 6th 4.131 |
| Primary Drive | - | Gear, 49/89 ratio |
| Transmission / Drive | 6 Speed gearbox cassette type | 6 Speed |
| Chassis |
| Frame Type | Aluminium dual beam chassis with pressed and cast sheet elements Available adjustments: headstock position and rake; engine height; swingarm pin height. Smart EC 2.0 electronically managed Öhlins steering damper | Stressed-member, high strength low alloy steel trellis frame; stamped, cast, and forged junctions; MIG welded; aluminum forged mid-structure |
| Suspension - Front | Smart EC 2.0 electronically managed Öhlins NIX fork. 43 mm stanchions, with TIN surface treatment. [Sachs fork with  43 mm stanchions]; Aluminium radial calliper mounting bracket. Adjustable spring pre-load and hydraulic compression and rebound damping. | 43 mm inverted fork with compression, rebound and spring preload adjustability. Aluminium fork triple clamps |
| Suspension - Rear | Double braced aluminium swingarm; mixed low thickness and sheet casting technology. Öhlins TTX monoshock with Smart EC 2.0 electronically managed piggy-back, fully adjustable in: spring pre-load, wheelbase and hydraulic compression and rebound damping. | Linkage-mounted, piggyback monoshock with compression, rebound and hydraulic spring preload adjustability |
| Fork Angle | - | 28° |
| Lean Angle | - | 35° |
| Rake | - | 30° |
| Steering Angle | 24.5° | - |
| Swingarm | - | High strength low alloy steel, tubular sections, stamped x-member, forged axle junctions; MIG welded |
| Trail | 103 mm / 4.0 in | 148 mm / 5.8 in |
| Wheel Travel - Front | 120 mm / 4.7 in | 92 mm / 3.6 in |
| Wheel Travel - Rear | 130 mm / 5.1 in | 82 mm / 3.2 in |
| Electronics |
| Traction control | APRC System (Aprilia Performance Ride Control), which includes Traction Control (ATC), Wheelie Control (AWC), Launch Control (ALC), cruise control (ACC) and speed limiter (APT), all of which can be configured and deactivated independently | - |
| Electrical Systems |
| Alternator | Flywheel mounted 450 W alternator with rare earth magnets | - |
| Wheels & Brakes |
| Brakes - Front | 2 x 330-mm diameter floating stainless steel disc with lightweight stainless steel rotor and aluminium flange with 6 pins. Brembo StylemaØ [M50] monobloc radial callipers with 4 30 mm opposing pistons. Sintered pads. Radial pump and metal braided brake hose | Single 320mm rotor, radially mounted, monoblock, 4-piston caliper |
| Brakes - Rear | Single220 mm diameter disc; Brembo calliper with two  32 mm separate pistons. Sintered pads. Pump with integrated tank and metal braided hose Bosch 9.1 MP ABS with cornering function, adjustable to 3 maps equipped with RLM (Rear wheel Lift-up Mitigation) (can be disabled). | Single 260mm solid uniform expansion rotor, floating single piston caliper |
| ABS | - | Standard |
| Rims - Front | - | 4.5 x 17 |
| Rims - Rear | - | 5.0 x 16 |
| Tyres | Radial tubeless | - |
| Tyres - Front | 120/70 ZR17 | 160/70TR17 73V Dunlop- Harley-Davidson Series, radial, GT503 |
| Tyres - Rear | 200/55 ZR 17 (alternative: 190/50 ZR 17; 190/55 ZR 17) | 180/70R16 77V Dunlop- Harley-Davidson Series, radial, GT503 |
| Wheels | Aprilia in aluminium alloy wheels with 3 split spoke design | Aluminum cast, satin black |
| Wheels - Front | 3.5 x 17 | - |
| Wheels - Rear | 6.0 x 17 | - |