APRILIA RS4 50 (2011-2012) Specs, Performance & Photos

The Aprilia RS4 50 was a small displacement sports replica created by Italian engineers for the youngest among Aprilia fans. The motorcycle had a unique look with the headlights mounted above the air intake and set new standards in style and technical content.

In 2011, the Italian motorcycle maker released the Aprilia RS4 50, which featured the same technical, visual, and performance specifications as the previous one without any significant modifications.

It was manufactured around an aluminum frame with a 41 mm inverted telescopic fork on the front, providing 110 mm of travel. An asymmetric swingarm with a single shock absorber on the rear offered 122 mm of travel, delivering excellent suspension performance and handling.

The bike was kept on the safe side by a 300 mm stainless steel brake disc on the front coupled to a four-piston radial caliper and a 218 mm stainless steel disc on the rear tied to a single-piston caliper, offering excellent stopping power.

As for power, the 2011 Aprilia RS4 50 had installed a 49cc two-stroke liquid-cooled single-cylinder engine underneath its fuel tank. The power generated by the engine was redirected to the rear end via a six-speed transmission and a final chain drive, spinning the rear wheel to 97 kph (60 mph).

The bike's visual department was characterized by standard fittings, such as a full fairing, a three-headlight system, a small windscreen, a two-piece dual seat, a single exhaust system, a dual-sided swingarm, and Y-shaped multi-spoke wheels.