American youths can rejoice to the news that the 2011 Aprilia RS4 125 will be coming to the United States for 2011. The four-stroke 125cc beginner bike may only have 15hp, but it has been done-up to look like the RSV4, and that’s what matters right? Replacing the RS125, the RS4 125 is supposedly just a Derbi in sheep’s clothing, but considering both brands come from the Piaggio mother ship, we fail to see why that would be an issue to a 16-year-old who has somehow managed to convince his/her parents to buy them a motorcycle. The liquid-cooled, four-valve, DOHC motor comes with electric fuel-injection, and is mated to a six-speed gearbox. Weight is 264 lbs with a full 3.8 gallon tank of gas. Technical Specifications after the jump.