APRILIA Unveil the RS 660 with New Engine

Aprilia has unveiled the all-new RS 660 lightweight mid-sport, powered by the new 100 HP 660cc twin engine.

It's a whole new concept of a sport motorcycle based on an optimal power-to-weight ratio from the highest standard sportbike factory. With its sharpened chassis, lightweight, new 100 HP twin-engine, premium electronic control devices, and breathtaking beauty, the RS 660 is the perfect blend of technology, innovation, and design to create an Aprilia-branded Quintessential.

It comes in three colors: 'Acid Gold', 'Lava Red' and 'Apex Black'. The selling price and release date in Japan is yet to be determined.

New 100HP twin-cylinder engine

It boasts 100 HP at 10,500 rpm, which is groundbreaking for a twin-engine of this displacement and can deliver performance up to 11,500 rpm, which is comparable to the performance of a larger two-cylinder engine. It also produces 67Nm of maximum torque at 8,500 rpm, 80% of which can be generated at 4,000 rpm, and 90% of which can be generated when the engine reaches 6,250 rpm.

In addition to performance and lightness, the goal was to extract the same level of characteristics and power as a V-twin engine, and the valve timing was selected with the connecting rod pin positioned at 270 degrees. Therefore, the combustion is asymmetrical and the 270° offset makes the combustion spacing irregular, allowing for performance and sound similar to that of a V-twin engine. In addition, a single countershaft can be used to easily balance the alternating primary and secondary forces.

The highest standard of electronic devices

A top-tier performance electronic system that exceeds the capabilities of even the top of the supersport class, with a six-axis inertial platform that includes an accelerometer and gyroscope to recognize the bike's condition relative to the road surface. It records and processes rider input and sends the data to the ECU, which seamlessly intervenes in control parameters.