Power transmission
The SC arrived in Autumn 1924 for the 1925 model year with the larger 1598 cc engine as standard (though the 1496 cc unit could be specified for sporting use). Most SC 12/50s were built on the longer chassis, which would be standard for the 12/50 until the end of production. Front wheel brakes were offered as an option on this model: a front axle of new design could be supplied with or without brakes. Power transmission was via a roller-bearing prop shaft of new design.