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: - Honda: @/Phant/Dylan 125/150_S, CB 500 94-03_M, CBF 1000 ST_M, CBF 1000_M, CBF 600 -07_M, CBF 600 08-_M, CBR 400 RR_M, Hornet 600 03-04_M, Hornet 600 05-06_M, Pantheon 125/250_S, SH 125/150, Silver Wing 400_S, Silver Wing 600_S, ST 1100 Pan european_M, VF 750 C_M, VF 750 F_M, VT 125 Shadow_M