Aprilia RS 660 Extrema

Aprilia displayed two sports prototypes, the RS 660 and the Tuono 660, at the 2019 EICMA show. The two were intended to fill a void in the range from the Noale manufacturer, to be able to compete with Japanese companies in the medium-displacement motorcycle sector.

. Created as a mid-size contender for racing championships, it has two road legal models being the RS 660 and the RS 660 Factory.

Featuring updated electronics, fiberglass race bodywork, adjustable rearsets, a race top triple clamp, clip-ons and a full titanium SC-Project exhaust system. Reported power output was 105 hp and reported dry weight was 153 kg (337.3 lb).

. In the spring of 2022, the factory version was introduced, which brought a technical update.

A new engine was introduced that increased the power output to 105 Hp and added some extra features to the electronics package. These included an extra rider profile, and Aprilia launch control (ALC).