Debenham Sisters Betty and Nancy Debenham, with their dog, Poncho, were keen motorcyclists. Nancy won a Gold Medal at Brooklands in 1926.
The Debenham Sisters
Gwenda Jansen "... she became exceedingly well-known and famous as Mrs Gwenda Stewart, wife of Col R N Stewart, with her record-breaking and racing achievements..."
Gwenda Stewart Trump-JAP 24-hour Record
406 cc, 86 x 70, desmo valves, belt-driven
camshaft, 6 speed gearbox. Developed 38 hp at 8000 rpm. Introduced in 1979, around 80 of these were produced for the 1985/86 season. It appears to have the same engine as the Merlin DG11.
Yak engines were supplied to Merlin
