Cruiser bicycle Sears, Roebuck and Company, the Elgin Motor Bike was advertised, and the term motor-bike was explained as follows, "The term "Moto-Bike" has reference only to the type of frame, meaning that it is built on the order of a motorcycle". Schwinn was one of many manufacturers who contributed to the development of the cruiser at a time when U.S. bicycle sales had declined sharply due to the Great Depression; adults purchased few bicycles, which were seen as luxury products intended largely for sport or recreation. In response to other manufacturers' innovations, Schwinn conceived their own sturdy, affordable bicycle designed for
Bicycle suspension RockShox, and (to a lesser extent) X-Fusion, RST, Suntour and Magura. Some bicycle manufacturers (notably Cannondale and Specialized) also make their own suspension systems to fully complement and integrate the bike set-up. Although much less common, some road bicycles do incorporate suspensions, particularly the Soft Tail variety mentioned above. One example is Trek Bicycle Corporation's s.p.a (Suspension Performance Advantage) rear suspension, offered on some of their Pilot models, but the system was removed for the 2008 model year. Virtually all bicycles produced by Alex Moulton bicycles also have very effective full suspension, due to the low unsuspended mass of the