A set of 3 'Lucas Copy' ignition coils For Triumph 750 Trident motorcycles from 1969-1975 and BSA Rocket 3. We use these coils on our own builds. We highly recommend you use copper core wires with your new coils especially if you are running a modern electronic ignition system. We also recommend using the proper spark plugs for your motorcycle. We offer free technical advice, just ask!