Sinclair C5 The C5 would be available initially by mail order at a cost of £399 and would subsequently be sold via high-street stores. Sinclair issued a glossy sales brochure characterising the vehicle as a part of an ongoing exercise in "cutting giants down to size, turning impersonal tyrants into personal servants". The brochure highlighted Sinclair's achievements in producing affordable pocket calculators, home computers, and pocket televisions and declared, "with the C5, Sinclair Vehicles puts personal, private transport back where it belongs – in the hands of the individual." The photographs accompanying the text showed housewives and teenagers driving the C5 to
Sinclair Zike miniaturisation" but stated that "a quick test ride suggested the Zike is too unstable and lacking in power to make a cyclist feel secure on the nightmarish roads of London." Similarly Nik Berg for "Auto Express" noted that the Zike was lightweight and portable, but expressed concern about the lack of power and stated that "potholes should be avoided at all costs—the tiny wheels just get swallowed." Sinclair Zike The Zike, or Sinclair Zike, was a lightweight electric bicycle invented by Clive Sinclair and marketed by his company Sinclair Research Ltd in 1992. It was a commercial failure, selling only