Relay clacson, Lucas 6RA, 5 terminali, 12V, 20Amp, originariamente montato su BSA Rocket 3 A75 (1968-1970), BSA A65 (1969-1970), Triumph T120, TR6 (1969-70), T140, T150, T160 (1968-1976), Norton Commando 750,850cc Twins (1971-1975)