NGK Racing Spark Plug - R0409B-9 which is manufactured exclusively for

which is manufactured exclusively for BRAKING

Width 80 [mm] Length 93 [mm]

Consistent "feeling" and high braking progressiveness

RFX Factory Kit Honda CRF450 17-20 CRF450RX 17-20

Just when you thought auto couldn’t get better

NGK Racing Spark Plug - R0409B-9 which is manufactured exclusively forThe Racing Spark Plug intended for competition should be able to resist to extreme conditions: Repeated acceleration and deceleration with power Intensive engine operating on high rev. Extreme condition inside combustion chamber such as temperature variation, pressure, vibration and turbulences cannot be sustained by a standard spark plug.