NGK Is A Leading Manufacturer Of Spark Plugs. As A World Leading OE Supplier To The Major Motorcycle Manufacturers They’re Committed To Providing Spark Plugs Designed To Meet Specific Requirements. As A Result NGK Is Often Consulted At The Initial Stages Of The Engine Design Process, With Their Designers And Engineers Working Alongside The Manufacturers Own Development Teams. Each Spark Plug Manufactured By NGK Is Designed To Meet The Most Rigorous Standards, Thereby Delivering Reliability And Consistent Performance Under All Conditions.