APRILIA RS4 125 (2013-2014) 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.

In 2013, the Italian motorcycle maker released the Aprilia RS4 125, a sports-oriented entry-level motorcycle in its second production year, packing a four-stroke single-cylinder fuel-injected engine instead of the previous two-stroke carburated one.

The bike came with standard features, such as a full fairing with a dual headlight system, a small windscreen, a two-piece dual seat, a single exhaust system with a silencer mounted on the right-hand side, and multi-spoke alloy wheels.

For suspension, the motorcycle packed a 41 mm inverted telescopic fork on the front with 110 mm of travel and a single shock absorber on the rear with 130 mm of travel, providing optimum suspension performance and handling capabilities.

In the braking department, the motorcycle's wheels were fitted with a 300 mm brake disc tied to a four-piston caliper on the front and a 218 mm brake disc on the front coupled to a single-piston caliper on the rear.

As for the power figures, the 2013 Aprilia RS4 125 had its soul brought to life by a 124cc four-stroke liquid-cooled single-cylinder engine mounted at its core, delivering 16 hp with a peak force at 10,500 rpm and 11 Nm (8 lb-ft) torque at 8,500 rpm.