NGK, DCPR9EVX High performance Platinum for Buell XB engines, and XR1200, and XL Sportster Sold per piece
We change them on the XR1200 every maintenace interval.
NGK Platinum® spark plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. Laser welded Platinum center electrode tip Platinum disc welded to backside of ground electrode provides long life Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties Faster starts and quicker acceleration Better fuel economy and lower emissions Best Platinum spark plug available Original Equipment Manufacturer approved design