The Rambler brand was created in 1878 by Thomas B. Jeffery, who co-founded G&J in Chicago with R. Philip Gormully.

At the time, low prices often took precedence over quality but in manufacturing the Rambler, G&J used several more costly techniques, such as using brass-brazed joints instead of more common non-brazed welds, which improved the quality of the bicycle.

[1] Jeffery sold his stake in the successful bicycle company in 1900 to the American Bicycle Company to focus on automobiles after favorable responses to his exhibition of a $900 runabout at auto shows.

[3] The Rambler's body featured flared metal tubing for extra strength at the joints, which were brazed by immersion in molten brass.

These techniques continued even after Gormully & Jeffery and Rambler became brands of the American Bicycle Company.