NGK is setting standards in meeting highest quality demands. By employing progressive engineering we ensure a performance level to satisfy also extreme conditions. Standard Model: * OEM Quality * Triple-Gasket Sealing Process * Consistent Performance * Plug of Choice in Millions of Vehicles Iridium Model: The “secret” of the Iridium IX spark plug is its laser-welded electrode made of iridium. Thanks to its exceptional thin diameter of 0.6 mm it bundles ignition voltage, thus improving combustion at any speed. The engine runs smoothly, the motorcycle accelerates faster. Also, the high-tech metal iridium keeps the distance between the electrodes completely stable, thus preventing the engine from backfiring. Compatible with: - Aprilia: Leonardo 125/150/250_S, Scarabeo 150_S - Cagiva: Raptor 650_M, V-Raptor 650_M - Honda: CBR 125_M - Kawasaki: KX 250 -05_M, KX 250/F 06-_M, VN 800_M - Kymco: XCITING 500_S - Malaguti: Madison 125/150/180_S - Mbk: Skyliner 125/150_S - Suzuki: AN 125_S, Burgman 125_S, Burgman 650_S, DL 650 V-Strom_M, DR 400_M, GSX F 650 08-_M, SV 650/S 03-08_M - Yamaha: DT 50_M, Fazer 600 -03_M, FJR 1300_M, Majesty 125/150/180_S, WR 250_M, WR 400_M, WR 426 F_M, WR 450 F_M, XJ 600 98- Diversion_M, XJ 600 S 91-97 Diversion_M, YZ 250 F_M, YZ 400_M, YZ 450 F_M, YZF-R 125 4T_M