This is actually a rather historical bicycle- it is one of the bikes that helped popularize the 10-speed "racing" style bike in the US, fueling the bike boom of the late 1960's and early1970's. Schwinn introduced several features aimed at making this style of bike more appealing to the masses, including stem-mounted shifters and so-called "safety levers", the brake lever extensions that allowed braking from the top of the handlebar. This is a Super Sport model that was made from Chrome Moly tubes and came with alloy rims, stem and handlebars. A lightweight, at about 32 lbs.! This specimen seemed remarkably well-preserved for being over 40 years old- I hope the owner appreciates the historical importance of her/his bike!