Schwinn Bicycle Company a separate deal with the China Bicycle Co. (CBC) to produce bicycles to be sold under the Schwinn brand. In retaliation, Giant introduced its own line of Giant-branded bikes for sale to retailers carrying Schwinn bikes. Both Giant and CBC used the dies, plans, and technological expertise from Schwinn to greatly expand the market share of bicycles made under their own proprietary brands, first in Europe, and later in the United States. By 1990, other United States bicycle companies with reputations for excellence in design such as Trek, Specialized, and Cannondale had cut further into Schwinn's market. Unable to produce
Bicycle helmet laws by country helmet use. Australia was the first country to enact mandatory bicycle helmet use for all cyclists. Mexico City has had mandatory cycle helmet laws repealed, and in Italy the Federazione Italiana Amici della Bicicletta managed to block a proposed helmet law. While bicycle helmets are not required to be worn by law in the United Kingdom the British Medical Association advocates the compulsory use of helmets. Cycling UK, the largest cycling advocacy organisation in the UK, consider helmet wearing as personal choice rather than being mandated by legislation. In 2002 an attempt was made to introduce bicycle helmet legislation in