Raleigh's first moped was introduced in 1958 with an engine designed by Vincento Piatti - the designer of Mini-Motor. Raleigh became part of the Tube Investments group of companies in 1960; this brought the Raleigh, Norman, Phillips and Hercules brands of moped under the same ownership. The obvious course of action was to rationalise these four ranges into one common series. A prototype was built based on the Sachs-engined design aready being produced by Norman, but it was eventually decided to license the Mobylette range of mopeds produced by Motobécane in France. From then on, all Raleigh, Phillips and Norman mopeds were effectively re-badged Mobylettes. The main exception to this was the Wisp, which, although it used Mobylette running gear, had an in-house frame. This frame was based on Raleigh's RSW16 bicycle and was an attempt to take advantage of the "small-wheel" boom being enjoyed in the cycle industry as a result of the success of the Moulton bicycle. Production of Raleigh mopeds ceased in 1971.