At SDT Brakes we manufacture two-piece brake discs in specific sizes. Our main disc sizes have a diameter of Ø290, 305, 325, 330, 355, 365, 380mm... We use a specific PCD, but we also have replacement ring / disc compatible with the sizes and P.C.D. of Alcon, AP-racing, Brembo, Endless, GALFER, PFC, K-sport, Stoptech...