The Aprilia RS4 125 weighs only 120kg dry, but Aprilia has made it physically big enough to be considered a proper motorcycle rather than a toy, with a 14.5-litre fuel tank for decent range.

The bikes never missed a beat being held at full throttle virtually all day in 30°C plus heat. Our Aprilia RS4 125 owners' reviews don't speak of very much to worry a potential secondhand buyer.

The Aprilia RS4 125 Replica is brought to life by an injected 4-stroke, DOHC 124.8cc single, with a peak power of 15 hp @ 10,500 rpm and a top torque of 10.9 Nm (8 lb-ft) at 8,250 revs.

Unveiled at the 2010 EICMA Show in Milan this week, the Aprilia RS4 125 is introduced as the RS125's successor. It is a GP derived replica sport production motorcycle with some design features ...

The RS4 isn’t quite the all-new bike Aprilia implies, however, because it’s closely based on sibling-brand Derbi’s GPR 125.

The bikes never missed a beat being held at full throttle virtually all day in 30°C plus heat. Our Aprilia RS4 125 owners' reviews don't speak of very much to worry a potential secondhand buyer.