07 July. Tuesday 2026
RS 660 Extrema - 2026 Specifications and Reviews
The 2026 Aprilia RS 660 Extrema is a lightweight middleweight sport bike designed for riders seeking accessible performance and agility. Powered by a 659cc parallel-twin engine producing 100 horsepower, it delivers sharp handling and a top speed of 235 km/h, making it ideal for both track enthusiasts and spirited road riding. Known for its Italian engineering and responsive twin-cam mechanics, the RS 660 Extrema bridges the gap between beginner-friendly and serious sportbike performance.
2026
General information | |
| Color Options | Checkered Flag |
| Category | Sport |
| | |
Engine and Transmission Specifications | |
| Starting | Electric |
| Emission Details | Euro 5 |
| Emission | 94.7 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel Consumption | 4.08 litres/100 km (24.5 km/l or 57.65 mpg) |
| Clutch | Multi-plate wet clutch with mechanical slip system |
| Final Drive | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling System | Liquid |
| Ignition | Electric |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. Airbox with front dynamic air intakes, two Ø48-mm throttle bodies |
| Valves Per Cylinder | 4 |
| Bore x Stroke | 81.0 x 63.9 mm (3.2 x 2.5 inches) |
| Compression Ratio | 13.5:1 |
| Max Torque | 67.0 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 8500 RPM |
| Capacity | 659.0 ccm (40.21 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 15.00 litres (3.96 US gallons) |
| Wheelbase | 1370 mm (53.9 inches) |
| Seat Height | 820 mm (32.3 inches) If adjustable, lowest setting. |
| Power/Weight Ratio | 0.6024 HP/kg |
| Wet Weight | 180.0 kg (396.8 pounds) |
| Dry Weight | 166.0 kg (366.0 pounds) |
| | |
RS 660 Extrema dimensions and frame | |
| Seat | Single seat |
| Wheels | Pirelli Diablo Rosso Corsa tires |
| Rear Brakes | Single disc. ABS. Brembo. |
| Brake Disc Diameter | 220 mm (8.7 inches) |
| Front Brakes | Double disc. ABS. Brembo |
| Rear Tyre | 180/55-ZR17 |
| Front Tyre | 120/70-ZR17 |
| Rear Wheel Travel | 130 mm (5.1 inches) |
| Rear Suspension | Aluminium asymmetric swingarm. Adjustable monoshock in spring reload, rebound braking |
| Front Wheel Travel | 120 mm (4.7 inches) |
| Front Suspension | Kayaba 41-mm stanchion fork, aluminium radial calliper mounting bracket. Adjustable spring preload and rebound damping. |
| Trail | 104 mm (4.1 inches) |
| Frame | Aluminium dual beam chassis with removable seat support subframe |
Speed and acceleration | |
| Top Speed | 235.0 km/h (146.0 mph) |
Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 Aprilia RS 660 Extrema discussion group or the general Aprilia discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Update specs | Report missing specs or required updates. |
| Comments | Carbon fiber components. Configuration software. Six-axis inertial platform. |
| Lighting | LED head light |
| Instruments | Digital, color |
| Rake (fork angle) | 24.1° |
| Exhaust system | SC-Project exhaust |
| Lubrication system | Wet Sump |
| Power | 100.0 HP (73.0 kW)) @ 10500 RPM |
| Engine type | Twin, four-stroke |
| Year | 2025 |
| Motorcycle name | Aprilia RS 660 Extrema |
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