BREY KRAUSE C5 HARNESS BARBrey Krause C5 harness bar The C5 harness mount bar has been tested and certified by an independent lab to handle the types of forces required by the National Highway Traffic Safety Admin. DOT and SAE J385 Rev. MAR 95, Motor Vehicle Seat Belt Anchorages Performance Requirements. The C6 harness mount bar properly locates and supports racing shoulder harnesses relative to the driver. In the case of an accident, it helps protect the driver's shoulders