Armstrong Black Edge Brake Disc BKF523L. Laser cut from premium Japanese induction hardened stainless steel, diamond ground for the perfect finish, these discs not only look great but also offer lighter weight over standard OEM models. 1x BKF523L Brake Disc. Type: Laser Cut Solid. Number of Holes: 5. Disc Thickness: 4.5mm. Disc Minimum Thickness: 4mm. […]