Tri-Spark Classic Twin Electronic Ignition System for BSA, Norton, Triumph : New Version




The New 17-128 Tri-Spark Twin Ignition - 12V Kit for BSA, Norton, Triumph - This unit supersedes the A and B units - Will fire in either clock or anti-clock.

The Classic Twin utilizes 21st century technology to provide simple installation without the black box, superior running and easy starting without kick back. Many years of experience with classic motorcycles and extensive development has resulted in this high precision, zero maintenance, compact and reliable system. Built in self test mode and LED for setting the timing.

The Classic Twin Ignition is suitable for Triumph Unit Twins T100, T120, TR7RV, T140 Bonneville, Tiger, Daytona etc; Norton Atlas and 1968 Commando; Enfield Interceptor (Clockwise Rotation);  Norton Commando 1969-75, BSA unit twins, A65, B50; BSA singles, B25 etc; and Triumph singles, Tiger Cub (Anticlockwise Rotation).

This unit comes complete with hardware and directions for installation. Fits unit Triumph motorcycles Single unit that replaces stock points Simple installation w/ zero maintenance. It even works if battery has low voltage (8 volt mark). This is a 12 volt system for positive or negative earth/ground installations. Made in Australia.


What the kit includes:

  • Tri-Spark stator unit (trigger and control module) - replaces the points plate
  • Tri-Spark trigger rotor - replaces the auto advance unit and points cam
  • 12 page illustrated colour instruction booklet
  • a few useful wiring terminals and hardware items for fitting


    "The 'Tri-Spark' should be definitely called the 'Transplant' as far as I'm concerned.It lives up to the expectations I had for it and then some."- Customer Comment

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