| General |
| Year | 2021 | 2026 |
| Make Model | Aprilia RS 660 | Yamaha YZF-R7 |
| Dimensions |
| Seat Height | 815 mm / 32.0 in | 831 mm / 32.7 in |
| Wheelbase | 1370 mm / 53.9 in | 1395 mm / 54.9 in |
| Ground Clearance | - | 135 mm / 5.3 in |
| Height | - | 1160 mm / 45.7 in |
| Length | - | 2070 mm / 81.5 in |
| Width | - | 724 mm / 28.5 in |
| Weights & Capacities |
| Wet Weight (kg) | 183 | 189 |
| Dry Weight (kg) | 169 | - |
| Dry Weight | 169 kg / 372.5 lbs | - |
| Fuel Capacity | 15 Litres / 3.9 US gal | 14 Litres / 3.7 US gal |
| Wet Weight | 183 kg / 403.4 lbs | 189 kg / 417 lbs |
| Performance |
| Max Power | 100 hp / 73.5 kW @ 10,500 rpm | 35 kW / 47 hp @7750 rpm |
| Max Torque | 67.0 Nm / 6.83 kgm @ 8,500 rpm | 68 Nm / 50 lb-ft @ 6500 rpm |
| Engine |
| Displacement | 659 cc / 40.2 cu-in | 689 cc / 42.04 cu-in |
| Engine Detail | Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Bore x Stroke | 81 x 63.93 mm | 80 x 68.6 mm |
| Compression Ratio | 13.5: 1 | 11.5:1 |
| Cooling System | Liquid cooled with radiator and water-oil heat exchanger | Liquid cooled |
| Emissions | Euro 5 CO2 emissions - 116 g /km | Euro 5 |
| Exhaust | Akrapovič - for race use only | Integrated 2-into-1 exhaust pipes and muffler |
| Fuel Induction | Airbox with front air intake. 2 ∅48 mm throttle bodies, Ride-By-Wire management | Fuel injection with YCC-T |
| Ignition | - | TCI Transistor Controlled Ignition |
| Lubrication | Wet sump | Wet sump |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Wet, multi-plate, slipper | Multiplate wet clutch, with Assist & Slipper clutch |
| Final Drive | Chain, with drive ratio: 17/43 | Chain |
| Transmission / Drive | 6 Speed, AQS Aprilia Quick Shift | 6 Speed constant mesh |
| Chassis |
| Frame Type | Double beam aluminium frame with detachable rear seat | A high-strength steel frame with a rigid-mount aluminum center |
| Suspension - Front | Kayaba upside down fork ∅ 41 mm with counter spring, aluminium feet for fixing radial calipers. Adjustable for rebound, compression and spring preload. | Telescopic fork adjustable for preload, rebound and compression |
| Suspension - Rear | Aluminium swingarm with asymmetrical trusses. Monoshock with adjustable counter spring: rebound and spring preload. | Linked-type Monocross shock, adjustable preload and rebound |
| Rake | 24.1° | 24° |
| Trail | 104.6 mm | 91 mm / 3.6 in |
| Wheel Travel - Front | 120 mm / 4.7 in | 119 mm / 4.7 in |
| Wheel Travel - Rear | 130 mm / 5.1 in | 122 mm / 4.8 in |
| Electronics |
| Electronics Package | 6-axis inertial platform, APRC suite which includes ATC (traction control, AWC (wheelie control), AEB (engine brake), AEM (engine map), ACC (cruise control) 5 Riding modes - (Road and Track, 3 fixed and 2 customizable) | - |
| Wheels & Brakes |
| Brakes - Front | 2x 320mm Brembo radial calipers with 4 32mm opposing pistons. Radial pump and metal braided brake hose | 2x 298mm discs, 4-piston calipers |
| Brakes - Rear | Single 220mm disc; Brembo calliper with 2 isolated ∅ 34mm pistons. Pump with integrated tank and metal braided hos | Single 245mm disc, single piston caliper |
| ABS | ABS Cornering multimap | Standard |
| Tyres - Front | 120/70 ZR 17 Tubeless radials | 120/70ZR17 Bridgestone- BATTLAX HYPERSPORT S23F |
| Tyres - Rear | 180/55 ZR 17 (alternatively 180/60 ZR17) Tubeless radials | 180/55ZR17 Bridgestone- BATTLAX HYPERSPORT S23R |
| Wheels - Front | In aluminium alloy 3.5 x17 | - |
| Wheels - Rear | In aluminium alloy 5.5 x17 | - |