Giant Bicycle doubled its net profit to 916.7 million Taiwan dollars (€24.8m-$28.1m) in the first quarter because of a one-time charge of TWD 655 million (€17.8m-$20.1m) taken last year that was not repeated. Revenues slid by 2 percent to TWD 14.4 billion (€389.8m-$441.2m) and the gross margin dropped by 1.4 ...