Positioned in Aprilia's sport motorcycle lineup, the 2021 Aprilia Tuono 660 features a 660 cc (40.3 cu in) liquid-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 95 HP (69.3 kW). With a specific output of 143.9 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the Tuono 660 measures 183 kg (403 lbs) wet (curb), translating to a power-to-weight ratio of 0.52 HP/kg (1.93 kg per horsepower).
Within MotoLibrary's Aprilia archive, this model family spans 6 indexed model years from 2020 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
143.9 HP/L
Power-to-Weight
0.52 HP/kg (1.93 kg/HP)
Engine
Displacement660.0 ccm (40.27 cubic inches)
Engine TypeTwin, four-stroke
Engine Details270-degree crank
Power95.0 HP (69.3 kW))
Fuel SystemInjection. Ride-by-Wire throttle
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Chassis
Frame TypeDiecast aluminium twin-spar
Front SuspensionKYB inverted fork.
Rear SuspensionSwingarm
Wheels & Brakes
Front Tyre120/70-17
Rear Tyre180/60-17
Front BrakesDouble disc. Brembo four-piston. ABS.
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc. Brembo. ABS.
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Weight incl.183.0 kg (403.4 pounds)
Other
StarterElectric
Color OptionsConcept Black/Acid Gold/Iridium Gray
LightTriple LED headlights and daytime running lights
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
