Like every motorcycle, every bike has its quirks and potential problems, but certain bikes develop a reputation for certain problems. Like all things, the Aprilia RS4 125 is not without its problems, with owners detailing their problems across the ownership experience. The RS4 125 has its fair share of common problems from electrical gremlins to engine hiccups. But the question remains: are these simply minor inconveniences that able to be easily figured out; or are these issues serious enough to make potential buyers do a second thought? Now let’s take a look at the most frequent issues reported, their severity and whether they should be deal breakers for those considering this Italian beauty.