NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode and platinum-tipped ground electrode improve ignitability, increase durability, and enhance anti-fouling capabilities. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage.
Needed a spare spark plug for racing, Bikebiz delivered as always on MY time crunch Great service
Haven’t yet, but service was excellent
on 11/04/2022
Hello Guy, Appreciate the 5-stars even though you have not yet received your NGK 4457 R7376-10 Racing Plug. We are happy that you are completely satisfied with your Bikebiz experience. Please do visit us again for more of your motorcycle needs. The Bikebiz Team
