NGK BR9EG (#3230) Spark Plug – Heat range 9 racing plug for KZ, CR125, YZ125, Mod Moto, and Open 125cc engines. 14mm thread, 19mm (3/4") reach, 13/16" hex, 5k resistor. Nickel center and ground electrodes deliver dependable high-RPM ignition and consistent combustion at a budget price. Slightly hotter heat range than BR10EG for leaner conditions or engines running hotter; shorter service life than iridium plugs.
