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Bill Sellin

About Bill Sellin

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.

Entries by Bill Sellin

Two-wheeler categories and definitions under law

February 5, 2025/in Enforcement/by Bill Sellin

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

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.

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Keri Caffrey on bicycle
Keri Caffrey

 

I am a technical illustrator and graphic designer with over 30 years as an urban bike commuter, recreational group rider and ride leader. I am convinced that the greatest challenges facing American bicycling are a lack of education and a destructive belief system about our public roads.

Through CyclingSavvy, Mighk Wilson and I created a toolset for bicyclists to enhance their preferred style of riding. Together, we can transform our traffic culture to recognize that roads are for all people, not just motorists.

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