
Sales of higher-end bicycles also increased during the bike boom, and many of these are gathering dust too. And, as the saying goes, a rising tide lifts all ships. It is more often a concern that many components - brakes, rims - but above all, drivetrain components - were not as good as the ones sold today. Usually, the frames were OK, though you do need to be on the lookout for incomplete brazing. Some lower-end Bike Boom bikes were assembled hastily. The manufacturers were caught by surprise, and product was suddenly in very short supply Suddenly hordes of baby boomers were standing in line demanding 10 speeds. When the Bike Boom hit, the industry was stood on its head. While many bike shops also carried a few adult models, the bulk of the business was focused on children. Prior to 1973, going back to the late '40s, bicycles were primarily seen as children's toys. The "Bike Boom" led to a revolution in the U.S. (It is commonly believed that the bike boom resulted from the 1974 oil shortages, but in fact, bicycle sales were already on the decline then). The 10-speed lightweight adult bicycle began to have wide distribution and acceptance.Environmental and health awareness were hot, trendy topics.


Baby Boomers were in their late 'teens or twenties, young and vigorous, with money in their pockets.In the early 1970s, a number of trends came together:
