Global Silicone Network News: Due to delayed delivery of parts, some of the world's largest bicycle manufacturers are considering restructuring their supply chains. Many manufacturers claim that the current delivery time is the longest in decades. The problem of parts supply has exacerbated the global bicycle shortage that started last year. Bicycle manufacturers that rely heavily on Shimano of Japan have said that the time from placing an order to delivering a series of high-end parts produced by the factory has been extended to 400 days; on the other hand, the epidemic has caused a surge in demand for bicycles. Japan’s Shimano controls 65% of the high-end market for bicycle transmissions and brakes.