Spark plug R0451B-8 wrench size: 14 thread length 26,5mm Iridium SAE odkręcana fits: HONDA CRF 230/250 2009-2011
The 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.