RK Standard Kit Aprilia RS50 Replica 99 05 Fitting Kits 00 Petrol 2010 To Fit 100290023 00 Petrol 2010 To Fit Front Left KAWASAKI ER 6F 650cc 650 Finished with an anodised black silencer with a 60mm outside diameter RK Standard Kit Aprilia RS50 Replica 99 05 Make Model Engine Variant Year Notes Aprilia RS 50 Replica PG 2T 1999 OE Grade Chain Kit Aprilia RS 50 Replica PG 2T 2000 OE Grade Chain Kit Aprilia RS 50 Replica PG 2T 2001 OE Grade Chain Kit Aprilia RS 50 Replica SE 2T 2002 OE Grade Chain Kit Aprilia RS 50 Replica SE 2T 2003 OE Grade Chain Kit Aprilia RS 50 Replica SE 2T 2004 OE Grade Chain Kit Aprilia RS 50 Replica SE 2T 2005 OE Grade Chain Kit