MTEC Front 340mm and Rear 345mm for BMW M135i M140i M235i M240i F20 F21 F22 F23 Kit Includes: MTEC5173 + MTEC5945 Front Disc Dimensions: Diameter (mm): 340 Thickness New (mm): 30 Thickness Minimum (mm): 28.4 Height (mm): 73.2 Bore Diameter (mm): 79 Rear Disc Dimensions: Diameter (mm): 345 Thickness New (mm): 24 Thickness Minimum (mm): 22.4 Height (mm): 66.3 Bore Diameter (mm): 75 Disc Finish Options: Dimpled Grooved Drilled Grooved Drilled Only Grooved Only C-Hook (+£16 per pair) Disc Coating Options: No Protective Coating Black Protective Coating: +£15.00 (per pair) Silver Protective Coating: +£15 (per pair) Gold Protective Coating: +£15.00 (per pair) If you require C-Hook or coatings, please contact us and we can process the order with additional costs