Boyer Bransden Electronic Ignition Replacement Black Box Triumph BSA Norton Twins

The first commercially produced Boyer-Bransden electronic ignition was launched in 1969 for Boyer of Bromley, a then famous motorcycle dealership whose Triumph race team were experiencing trouble with the points on their race bikes. They proved an instant success. By the time the Lucas "Rita" system entered the arena in 1973 Boyer-Bransden were already producing the Mark II having then sold more than 2,000 systems.