What can occur if the brake lines have too much flex?

Having too much flex in brake lines can lead to significant risks related to the braking system's performance. When brake lines flex excessively, it can cause a reduction in pressure transmission from the brake pedal to the brake components. This happens because the hydraulic fluid may not flow effectively through the line, leading to a loss of pressure necessary for the brakes to engage properly.

As a result of this flexing, the brake system may not be able to generate enough force to stop the vehicle effectively, which can ultimately lead to brake failure. In severe cases, this could result in complete brake loss, posing a danger to the driver and others on the road. Therefore, ensuring that brake lines are rigid and well-maintained is essential for the overall safety and reliability of the vehicle's braking system.