Aprilia claims several first for the SR50 in the scooter market, including 13 inch wheels, liquid cooling, double disc braking, and a direct injection engine. …
Aprilia SR50 - Wikipedia
Engine (ditech) spare parts for Aprilia SR from 2000 - 2004 | PartsRepublik
2004 APRILIA SR50 SR 50 ERRE RACING CARB SCOOTER LC 55MPH+ VGC NEW MOT & TAX V5 - YouTube
OEM Injection unit (Ditech) - Aprilia [scooter] SR 50 H2O Di-Tech e2 / 2004 | Oemmotorparts