NGK Iridium Spark Plug For Royal Enefield Classic/Thunderbird/GT 650
Royal Enfield(Thunderbird, Classic, Bullet),
BS-4 - 500cc (Thunderbird, Classic, Bullet),
Continental GT (535cc)
Iridium spark plugs are globally the best performance category of spark plugs having superior technology. These spark plugs use very precious Iridium metal at the tip of center electrode of diameter 0.6mm. and has a thermo-edge design for central electrode. These features give anti carbon fouling performance, smoothest running, and excellent acceleration with increased mileage and are used and appreciated by most racing bikes and cars all over the world.