1910 Stanley Show Report

Calthorpe Motor-cycle Works.
Birmingham. Stand No. 52.
The six Calthorpe models illustrate three different patterns of motor-bicycles. The standard touring machine is fitted with an engine measuring 86mm. in the bore and 88 in the stroke. This is rated at 3.75 H.P., and we should think this power is by no means over-estimated. The valves are of generous dimensions and are both mechanically operated. Belt transmission is employed with a variable pulley. A Brown and Barlow carburetter and high tension magneto supply the gas and the means for firing it. There is a specially designed cut-out on the silencer. A good deal of care has been bestowed on the tank and its accessories. It is fitted with large, quickly detached tillers, and a combined filter and petrol gauge. Lubrication is effected by a drip feed oil pump.
Last, but not least, the frame is designed so as to afford a very low saddle position. Another specimen is similar to the above, but has a side-car attached, and is similarly equipped with as L.M.C. free engine and two-speed gear. Then there is a third with another style of frame even lower than the first. Probably the most interesting of the lot is the new Tourist Trophy model. This has a short stiff frame and rigid stayed front fork. Pedalling gear is, of course, absent, and the foot-rests are adapted to operate a powerful brake on the belt rim. Weight has been studiously reduced while maintaining strength and the horse-power per lb. rating works out very high. The prices are attractive both to the agent and rider, and the company's motto continues to be "Wholesale, and to the Trade only."

Olympia Show, November 1910

CALTHORPE, No. 52. 3½ h.p. Model 86x88mm; m.o.i.v., Simms magneto; B. and B. carburetter, h.b.c.; 2¼in. Hutchinson tyres; 7/8in. belt transmission.

MINSTREL AND REA CYCLE Co., LTD., Barn Street, Birmingham.

The Calthorpe motor bicycle was described in detail in our issue of last week. The firm's exhibit consists of five motor bicycles two of which are fitted with the Lloyd Auto-Varia pulley.

The tourist model, finished all black, is worthy of special attention. Yet another feature which strikes the eye is the chain guard fitted to all models and the aluminium mud shield referred to in our last issue. Both variable geared models are shown fitted with sidecars.

Olympia Show, November 1910