BRISK spark plug MR12YS-9 Silver Racing series

BRISK MR12YS-9 Silver Racing spark plug is designed specifically for racing motorcycles that require reliable performance in extreme conditions. It features a silver centre electrode, which boasts excellent thermal conductivity and ensures reliable ignition even under high loads. The special design resists high vibrations and pressures typical of racing engines. An open spark gap contributes to perfect mixture combustion, helping you achieve maximum engine performance.

Designed for racing conditions

The core of this spark plug is a silver centre electrode. As an excellent conductor of heat and electricity, silver ensures the plug works reliably even in the extreme conditions of racing engines. Combined with a special construction, it resists high pressures and vibrations without any loss of performance. The open spark gap allows the spark easy access to the fuel-air mixture, leading to rapid and complete combustion. Additionally, the design of the insulator tip extends protection against conductive deposits, helping to maintain stable performance over a longer period.