Triumph 650 Unit Twins Front Drive Sprockets - 1964-72 - Choose Sprocket Size Commando Mounting Studs are approx 3

Mounting Studs are approx 3 1/2" apart

To be clear

T100SS and more) up to 1974

This Switch was fitted to a wide range of Triumph

From Experience and History

Triumph 650 Unit Twins Front Drive Sprockets - 1964-72 - Choose Sprocket Size Commando Mounting Studs are approx 3Replace your worn out front drive sprocket with a high quality EMGO sprocket. EMGO sprockets are affordable and just as good if not better then than the expensive "English" types. Sprocket accepts a standard 530 or 5 8" X 3 8" chain. Fits all Triumph 650 unit twins (Bonneville, T120R, Tiger, TR6, etc) from 1964 1972 with the 4 speed gear box. Also fits Triumph and BSA triples from 1968 1972 with the 4 speed transmission. Please refer to your parts