Trek was an early adopter of carbon-fiber technology. In 1992 it unveiled its first US-made, full carbon-fiber-framed bicycles, the 5200 and the 5500, featuring a new technology called OCLV.
The ladies’ Hirondelle model features slightly more modern features than its predecessor such as both front and rear brakes. It also offers a “basket weave” protection to keep ladies’ garments away from the rear spokes.
Although Barberon & Meunier first patented the retro-direct system in 1869, the gear system was further developed and refined by other companies, including Manufacture at the turn of the century.
The 1990s was an exciting time in the bicycle industry with new materials such as aluminum and carbon fiber presenting new design possibilities. Many “non-traditional” designs, like the Zipp 2001, began entering the market.
