Trombetta Tympanium Regulator for Your Vintage Triumph, Norton and BSA

The Bonneville Shop offers genuine Trombetta Tympanium electrical parts for your vintage Triumph, Norton and BSA motorcycle. Buy online quality parts at The Bonneville Shop.

Long a standard in the Brit bike industry, the Tympanium regulator rectifier unit has proved itself over the years to be virtually bulletproof! Can be used on any 12v British bike with a single phase alternator including BSA A50, A65, Triumph twins, triples and singles, TR25W, T120 Bonneville, TR6, Tiger, T140, TR7, Norton Commandos, etc. All units supplied with easily understandable instructions.