WinmaX WST Performance Slotted Brake Discs Mitsubishi 5-9 (1996-2008) 300mm diameter rear pair. WinmaX brake rotors offer a performace upgrade over OE discs by using high quality castings and improved cooling to be able to handle more spirited driving on the street or track. Disc Specifications: Diameter (mm): 300 Height (mm): 58 Thickness (mm): 22 Minimum Thickness (mm): 20 Centre Hole (mm): 90 Stud Holes: 5 Weight (kg): 7