Emgo Speedometer Gearbox 15:12
To fit BSA A75 Rocket 3 (1967-70)
Triumph T120/TR6R (1966-70), T150 (1968-70).
This gearbox is brand new production and has been carefully hardened to slightly exceed the OEM specifications for increased longevity.
An internal Broaching Guide is available for download below :-
For models fitted with Magnetic type speedo’s after 1966.
Centre hole size : 3/4″
Ratio 15:12
Smith’s No : BG5330/168
OEM: 19-9217,60-0637