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BRISK PREMIUM BOR12LGS Spark Plug 12mm thread, 3/4"(19mm) reach, 5/8'(16mm) hex, gasket seat, resistor, LGS Lamborghini semi-surface firing tip design, retracted integrated ground electrodes, silver center electrode. Popular applications: Harley Davidson motorcycles Buell
Spark gap enabling surface flashover (extreme long) with the possibility of spark-over around full circumference 360°. Ignition spark will jump always at point of highest fuel concentration. Substantially higher flame propagation rate in the initial phase of flame propagation in the combustion chamber enables superior fuel energy utilization. The combustion velocity in conjunction with knock sensor assures engine-power increase. The spark gap of spark plugs BRISK PREMIUM "LGS" is protruded deep into combustion chamber.
Unless your application is directly listed, please check to insure the plug yuo are ordering fits. Many applications listed are "universal" and listed to fit "all bikes" . Unless stated, these plugs may or may not fit your application. Brisk Catalog