APRILIA RS 125 (2017-Present) Specs, Performance & Photos

The Aprilia RS4 125 was a 125cc class sports bike manufactured by Aprilia in 2012 to replace the popular RS 125 two-stroke made from 1992 to 2012. The RS4 125 was based on the four-stroke version of the Derbi GPR125.

Between 1992 and 1995, the motorcycle packed an angular tail section, a swept front fairing, a square headlight, three-spoke wheels, an electric starter or kickstart, and analog gauges.

In 1996, the bike had its first revision that included a new, improved Rotax 122 engine, air intakes integrated into the upper portion of the middle fairing, a rounded headlight, and a digital gauge in place of the temperature gauge. In addition, the "Extrema" designation was dropped.

In 1999, a revised version of the model was released, which included modifications, such as more rounded and bulbous fairings, a single air duct on the right-hand side, a larger lip on the headlight, and five-spoke rims.

In 2012, the line was dropped to make way for the new Aprilia RS4 125, a model that packed a new four-stroke single-cylinder fuel-injected Rotax engine instead of the previous two-stroke unit.

In 2017, the Italian motorcycle maker released the Aprilia RS 125. It was renamed to celebrate 25 years of the RS model. It was EURO4 compliant, had a USB port, a storage compartment that could fit a six-inch tablet, and three headlights.

The 2017 Aprilia RS 125 had installed a 124cc four-stroke liquid-cooled single-cylinder engine underneath its fairing, boasting 16 hp at 10,500 rpm and 11 Nm (8 lb-ft) torque at 8,500 rpm.