The NGK Motorbike Spark Plug C use a central electrode with copper deeply inserted in the tip, quickly dissipates large amounts of heat, preventing overheating and fouling.

Features & Benefits:
Copper cored electrodes dissipates the heat combustion away from the firing end
This prevents hot spots that can lead to pre-ignition
It also has a longer insulator nose that can be used to protect against fouling
Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Triple Seals Prevent Leakage