The phrase "regular bike" refers to a typical or normal bicycle that does not have any special features or modifications. It is an ordinary bike that most people use for transportation or leisure activities. Full definition
These bikes look just like regular bikes — the electric motors and batteries are integrated seamlessly into the design. (treehugger.com)
It's the European standard, used because they can play nicely in bike lanes with regular bikes. (treehugger.com)
It's just a clever approach to identifying and reducing the sticking points that make regular bikes harder to carry and more of a pain in the ass to store. (treehugger.com)