The sensor has a 1/2" CEI thread which fits all classic British bikes:
•Triumph
•BSA
•Norton
•Enfield
•Royal Enfield.
Note: For modern Triumph with cable drive speedometer use ACE-S8
It replaces the original speedo cable and provides the electrical drive to operate an Acewell speedometer.
Please Note: Choose 3 wire plug if used with speedo brands other than Acewell