However, the design may vary on some models. Road legal of the Federal Motor Transport Office: yes., Outer diameter: 180 mm. Brake disc for div. OEM quality vehicles. Outer diameter: 180 mm. Inner diameter (holder): 62 mm. Thickness: 4.0 mm. Holes: 3 Hole diameter: 10.5 mm. Type: Standard/Round More than 30 well-known European and Japanese vehicle manufacturers rely on the top quality of NG and equip their vehicles ex works with NG manufactured brake discs. NG 180 mm Brake Disc for Aprilia RX 50, SX 50, SX 125 Rear The brake disc specialist NG brake disc is a Spanish family company, which has produced brake discs for motorcycles, scooters, quad bikes and ATV for more than 20 years. Disque Frein NG 180mm Disque Frein Arrière NG 180mm - Compatible 2009 Aprilia RX50/SX 50 The general operating licence of the German Federal Motor Transport Office KBA is supplied with each brake disc. The OEM version corresponds to the dimensions of the original brake disc. Inner diameter (mount): 62 mm., Thickness: 3., 5 mm Holes: 3 Hole diameter: 10., 5 mm. 180mm Rear Brake Rotor 48274-BRAKE DISK NG BRAKE DISK Compatible With APRILIA RX 50 RACING 50 NG Brake Disc For RX50 SX50 NG Rear Brake Disc 180 mm for Aprilia RX 50, SX 50, SX 125