Champion Spark Plug N4C

TRIUMPH Unit Construction 3TA, 5TA, T90, T100. Unit Bouw 650, pre 1969.

A.J.S 1964 ingang 18 Statesman, 31 Swift, 33CSR, 33, 16C Experts

ARIEL Leader, Arrow, Arrow Super Sport, Golden Arrow, Arrow 200 (gap .030" )

BSA

A7SS, A10RGS, A10RR, A10SR. A50, A50C, A50CC, A65, A65LC, A65R, A65T. B32 Alloy Head. Gold Star Racer: B40SS90, Victor B44R, B44SS. Victor B44ET, B44GP, B44VS. C15SS80. Bantam modellen:. D10, D14 / 4, D14 / 4S

MATCHLESS

1964 verder:. G3C Maestro, G3C Trials, G80 Major, G12 Majestic

NORTON

650 Dominator, 650 Mercury. 1964 verder alle andere modellen.

Royal Enfield

736cc Interceptor.

VINCENT

MSS 500 cc Alloy. Viper Sport, Viper Clubman, Venom Special, Venom Sport (gap .025" )