12 Volt Coil, 250 500, 66-73 T20 TR25 TR5T for Triumph
New 'Lucas Copy' ignition coils for BSA And Triumph single cylinder 250 350 441 500, Motorcycles From 1966-1973. They can be used on earlier unit models If you are converting to 12 volt.
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!