NGK Iridium Motorcycle Spark Plugs.

Features:
The ultimate in the evolution of spark plug technology and performance from the industry leader.
The iridium electrode is 25% smaller than a platinum electrode, and it?s just 1/4 the size of a conventional nickel electrode.
Ultra-small-diameter center electrode reduces voltage requirement and extends ignition system life.
New metal shell plating has enhanced anticorrosion qualities.

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