Two-wheeler categories and definitions under law
Editor’s note: California cyclist and advocate Bill Sellin has produced the Venn diagram of two-wheeler categories below. It identifies how California traffic law treats bicycles, motorcycles and everything in between, with or without pedals. Sellinsuggests how his analysis can be useful in clarifying enforcement issues and in advocacy. The same type of analysis can serve […]

Bill Sellin is a California cyclist and cycling advocate. He serves as a member of the Infrastructure Review Committee of the Orange County Bicycle Coalition and as Area Liaison to Caltrans District 12.