The term "bike" originated as a short term for bicycle and we all know that was a two wheeled pedal vehicle. Then there is the unicycle and the tricycle all pedal venicles. Motorcycle is the only true term of a motorized two wheeled vehicle....so all "bikers" are those that have bicycles and pedal around..... I go to bike nights and enjoy them and seeing all the different rydes. Most all of them welcome all types and cannot claim anything as HD, VW and Honda also have "Trikes"... Go have fun and if you should run into a malcontent let the comments roll off like water on a ducks back....