single or twin cylinder model from 5 to 8 H.P., for side-car touring, and costing from £75 to £100 complete. (These prices have since been approximately doubled.)
Up to now the motor bicycle only has been dealt with, but quite early in the history of the industry the question of carrying a passenger in a fore-carriage or side-car was seriously attracting the attention of makers and riders alike. The trailer and the quadricycle were the
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Fig. 30
THE 4-H.P. TWIN-CYLINDER HUMBER
The engine is of the horizontally opposed cylinder type
first forms of passenger attachment. They were both superseded, first by the fore-carriage attachment and later by the side-car. Various claims have been made as to the origin of the side-car, but I believe the first practical design was protected by a small London firm of cycle makers and sold to the Cycle Components, Ltd., Birmingham. The idea was ridiculed as un-mechanical, but it remains to-day the most economical form of passenger motoring and without it not more than one-quarter to one-third of the motor bicycles manufactured would be sold. The manufacture of side-cars
