Spark plug with short neck NGK B7HS, valid for Montesa Impala, Brio and many models of Montesa Cota, Etc.. also for various models of Bultaco, Ossa, Derbi, etc..

Spark plug recommended as a standard thermal grade for several Montesa and Bultaco models and for many classic motorcycles, without resistance to facilitate starting motorcycles with less spark intensity, see the manufacturer's specifications.

Includes:

     X1 Spark plug heat grade 7

Valid for:

     wild impala
     Montesa Cota
     Various Bultaco