the braking system comprised a cast-iron detachable brake drum on each roadwheel, with the retardation provided by asbestos-lined brake shoes mounted in a twin-leading arrangement at the front wheels and leading/trailing at the back. the shoes were operated by double-acting lockheed hydraulic cylinders, fed by a single hydraulic circuit connected to the brake master cylinder, which was mechanically linked to the brake pedal. this design was normal for that time.