34 21 Rear Brake Discs R56
REAR BRAKE DISCS R56 - TECHNICAL DATA
| Different thicknesses on brake linings | max. mm | 0.01 |
| Surface roughness of braking surfaces (precision-turned) | Ra μ | 0.5... 3.5 |
| Brake disc diameter Models: ONE, COOPER, COOPER S |
mm | 259 |
| Wear warning from residual lining thickness | mm | 3.0 |
| Brake disk minimum thickness (MIN TH) stamped on brake disk body Models: 520i, 525i, 530i, 530d |
mm | 8.4 |
| Max. machining limit per friction ring side | mm | 0.8 |