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 lock bolt croppers, and D-locks were breached using a stubby bottle jack. Of the locks tested, five had a Sold Secure Gold rating, varying in price from £25 to £100. Two of these Gold rated locks withstood only 10 seconds of attack. The Dutch consumer news show Kassa 3 published a four-minute show in which a former bicycle thief removed eight consumer-grade locks (cheaper than €30 / ~$40) from a bike in times ranging from 10 to a maximum of 84 seconds. The locks included those from manufacturers ABUS, Hema and Halfords. Bicycle locks are only effective when they are used