VOUZELA, Portugal — Inside a factory set among eucalyptus trees in the Portuguese countryside, workers carefully cut thin strips of sticky carbon fiber and press them into molds. It is slow and painstaking labor.
But after each mold is cooked in an oven heated to 200 degrees Celsius (about 390 degrees Fahrenheit), out comes an incredibly light frame for a bicycle that may sell for about $7,000, helping accelerate Portugal’s growth as the largest bike manufacturing nation in the European Union.
Demand for bikes is soaring, thanks in part to the coronavirus pandemic. More people have decided to pedal to