Isle of Man.
Full titles read: "NEW MOTOR CYCLE RECORD - T. Bennet, on a Sunbeam, wins Senior Tourist Trophy from 68 other competitors, averaging over 58 miles per hour for 3hrs 58 minutes."
L/S's of motorcyclists starting race. M/S of motorbike going over the top of bridge. L/S of various motorcyclists speeding round a sharp corner. L/S of cyclist coming around a corner too fast and almost coming to grief on the pavement but he keeps control and keeps going. Crowds cheer and wave from the roadside. M/S of motorcyclist (presumably T Bennet) being congratulated by people as he walks, he is smiling and laughing.