The DBL (Dynamic Brake Light) system is a safety device, which makes brake light flash to warn following vehicles of sudden hard braking. The DBL is an accelerometer so it does not require a connection to the motorcycle's hydraulic braking system. The DBL can be connected to the motorcycle brake light or to our multifunction turn signals (turn signal, tail and brake lights). Device operation can be adjusted. The DBL (Dynamic Brake Light) system is a safety device, which makes brake light flash to warn following vehicles of sudden hard braking. The DBL is an accelerometer so it does not require a connection to the motorcycle's hydraulic braking system. The DBL can be connected to the motorcycle brake light or to our multifunction turn signals (turn signal, tail and brake lights). Device operation can be adjusted.