Aprilia RS 660 35KW - 2026 Specifications and Reviews

The Aprilia RS 660 35kW is a lightweight middleweight sport bike engineered for riders seeking responsive handling and accessible performance. Its compact 659cc twin-cylinder engine delivers smooth power without overwhelming newer or smaller-framed riders, while its agile chassis and 235 km/h top speed make it ideal for both track days and spirited road riding. Known for its refined Italian engineering and friendly character, the RS 660 bridges the gap between learner bikes and full-power supersports.

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General information

Color OptionsAcid Gold, Racing Black, Tribute Purple
CategorySport
Year2025
ModelAprilia RS 660 35kW

Engine and Transmission Specifications

StartingElectric
Emission DetailsEuro 5
Emission113.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel Consumption4.90 litres/100 km (20.4 km/l or 48.00 mpg)
ClutchMulti-plate wet clutch with mechanical slip system
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
IgnitionEletric
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
InductionInjection. Airbox with front dynamic air intakes, two Ø48-mm throttle bodies
Valves Per Cylinder4
Bore x Stroke81.0 x 63.9 mm (3.2 x 2.5 inches)
Compression Ratio13.5:1
Max Power46.9 HP (34.3 kW))
Engine TypeTwin, four-stroke
Capacity:659.0 ccm (40.21 cubic inches)

Physical measures and capacities

Fuel Capacity15.00 litres (3.96 US gallons)
Wheelbase1370 mm (53.9 inches)
Overall Width745 mm (29.3 inches)
Overall Length1995 mm (78.5 inches)
Overall Height1150 mm (45.3 inches)
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
Power/Weight Ratio0.2778 HP/kg
Wet Weight183.0 kg (403.4 pounds)
Dry Weight169.0 kg (372.6 pounds)
 
 

Aprilia RS 660 35KW dimensions and frame

WheelsPirelli Diablo Rosso Corsa tires
Rear BrakesSingle disc. ABS. Brembo.
Brake Disc Diameter220 mm (8.7 inches)
Front BrakesDouble disc. ABS. Brembo
Rear Tyre180/55-ZR17
Front Tyre120/70-ZR17
Rear Wheel Travel130 mm (5.1 inches)
Rear SuspensionAluminium asymmetric swingarm. Adjustable monoshock in spring reload, rebound braking
Front Wheel Travel120 mm (4.7 inches)
Front SuspensionKayaba 41-mm stanchion fork, aluminium radial calliper mounting bracket. Adjustable spring preload and rebound damping.
Trail104 mm (4.1 inches)
FrameAluminium dual beam chassis with removable seat support subframe

Speed and acceleration

Top Speed235.0 km/h (146.0 mph)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Update specsReport missing specs or required updates.
CommentsSix-axis inertial platform, APRC package containing ATC (traction control), AWC (wheelie control), AEB (engine braking), AEM (engine maps) and ACC (cruise control).
LightingTriple-LED head light
InstrumentsDigital, color
Rake (fork angle)24.1°
DrivelineDrive ratio 17/43

Rider Fit Visualizer

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 820mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2026 Aprilia RS 660 35KW, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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