A cycle motor, to be called the Winged Wheel, is to be marketed by BSA. Designed to replace the rear wheel of a normal bicycle, the unit embodies gear drive transmission through a three-plate clutch, a 9½ in. diameter internal expanding brake, and a heavy duty free-wheel of the locking roller type. Complete with control cables and levers, tyre and tube, fuel tank and fittings, and capable of up to 200 miles per gallon.

The two-stroke engine is incorporated in a 26 × 1½ in. cycle wheel with the cylinder, horizontally disposed, in line with the cycle frame; the cylinder head faces forward into the air stream. Strengthened by heavy duty spokes, the wheel can be fitted to most types of standard bicycle. A separate fuel tank of half-gallon capacity is intended to be fitted in the carrier position above the rear wheel. Weight of the engine-wheel unit is given as just under 27lb. This vehicle is V5 registered.