Speedometer gearbox 15:12.
This gearbox is brand new production and has been carefully hardened to slightly exceed the OEM specifications for increased longevity.
For models fitted with Magnetic type speedo’s after 1966
Triumph,BSA,AMC,Norton Speedometer Gearbox 2:1. To fit AJS/Matchless heavyweight twins & singles (hole may require reaming). BSA C15/B25/B44, all years. Norton
