CALTHORPE, No. 77.

3½ h.p. Model : 85 x 88 mm.; side by side m.o.i.v.; B. and B. carburetter; belt.

The Calthorpe Motor Cycle Co., Barn Street, Birmingham. – This is a standard 3½ h.p. model, with drop frame, Druid spring forks, and a stand which when out of use springs up automatically into position

2½ h.p. Model; 70 x 76 mm.; side by side m.o.i.v.; B. and B. carburetter; belt.

This machine follows standard lines throughout, except that it is shown fitted up in Tourist Trophy style, with dropped handle-bars and footrests.

Calthorpe 1912 with Sidecar

4¼ h.p. Model (Special Sidecar); 90 x 96 mm.; side by side m.o.i.v.; B. and B. carburetter; belt and chain; Calthorpe two-speed gear.

The 4¼ h.p. mount is specially constructed for sidecar work. From engine to gear box the transmission is by chain enclosed in a gear case. The gear box is carried on the bottom bracket. The gear wheels are always in mesh, and engagement is effected by means of internal expanding clutches brought into operation by a long lever at the side of the tank. The driving pulley on the gearshaft is of large dimensions, so that the wear, of the belt is reduced to a minimum. Wide footboards are provided. One of these machines is shown fitted to a sidecar provided with a handsome coach-built body, with high side door and Cape cart hood and screen. In the dashboard shelves are provided for tools, and at the front of the seat a further locker is provided for this purpose, while under the sidecar frame is a platform for luggage, and beneath it a special holder for a petrol tin. It must also be mentioned that this outfit is provided with a special carrier for a spare cover, which is placed between the machine and the side-car.

1911 Olympia Show - The Motor Cycle November 23rd, 1911. Page 1255