Unrestricted Aprilia RS 50 tops out at only 45mph?
Aprilia SR50 - Wikipedia
Aprilia Sr 50 Cylinder Kit | Big Bore Aprilia Sr 50 | Aprilia Sr 50 Scooter - Scooter - Aliexpress
Aprilia RS50 - Wikipedia
TOP SPEED APRILIA RS 50 127 KM/H !!! 80CC POLINI MALOSI ITALKIT METRAKIT TURBOKIT YASUNI - YouTube
How fast can a moped go? - Quora
Aprilia RS50 (2006-2012) review and used buying guide | MCN
Amazon.com: Complete 70cc Racing Cylinder Big Bore Kit with 10mm Piston Pin for Yamaha JOG Zuma 2 Stroke 50cc Scooter Minarelli 1E40QMB Engine : Automotive
Cylinder Aprilia SR 50 LC Big Bore Kit 70cc, 157,95 €
exhaust VOCA Carbon 80cc for Aprilia RS 50 D50B, Derbi GPR 50 Racing D50B