As reported by Motor Scooter Guide:
Aprilia’s line up got even thinner for 2016 with the North American demise of the SR50 after a fantastic 16 year run dating back to Aprilia’s USA debut in 1999. The only remaining model is the SR Motard 50, which is a shared platform with Piaggio’s Typhoon.
The 2016 Aprilia SR Motard 50 is pictured above.