The motorcycle has a long history, dated way back on the second half of the 19th Century. It all started with "safety bicycle", the term was used to replace the high wheelers:
http://www.icenicam.ukfsn.org/articles/art0015c.jpg
http://renekmueller.com/Present/Pics/history-starley-safety-bicycle.gif
Our modern bicycle has evolved from the safety bicycle, it has the same feature except for the innovations and the term used to call it. In our time we just simply call it "bicycle".
There were lots of engineers and inventors that had numerous ideas for innovation during those times, thus, creating different versions and designs. It was...
