NGK Racing Spark Plug - R6254E-105 Internal fluid pressure is the

Internal fluid pressure is the most important element that affects how effective your cooling system is at engine heat dissipation

Multiple reinforced padded grab handle

Factory-Links bearings are filled with a premium quality

so all types and sizes of helmets fit into it

Woven four-way stretch finger sidewall provide flexibility

NGK Racing Spark Plug - R6254E-105 Internal fluid pressure is theThe Racing Spark Plug intended for competition should be able to resist to extreme conditions: Repeated acceleration and deceleration with power Intensive engine operating at high rev. Extreme condition inside combustion chamber such as temperature variation, pressure, vibration and turbulences cannot be sustained by a standard spark plug.