RS660 Factory

2025 Aprilia RS660 Factory Technical Analysis & Specification Breakdown

At the heart of the 2025 Aprilia RS660 Factory sport motorcycle, Aprilia features a 659 cc liquid cooled with radiator and water-oil heat exchanger-cooled engine configuration. In factory specification, peak output is rated at 105 HP while maximum torque reaches 68 Nm, transferring power to the rear wheel through a 6 speed, aprilia quick shift (aqs) system up and down (optional accessory) gearbox. With a specific output of 159.3 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the RS660 Factory measures 183 kg (403 lbs) wet (curb), translating to a power-to-weight ratio of 0.57 HP/kg (1.74 kg per horsepower). Rider ergonomics and chassis geometry center around a 822 mm (32.4 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams. The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Aprilia archive, this model family spans 2 indexed model years from 2025 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.