Educated cyclists know that they not only can (legally), but should (for safety) occupy an entire lane when conditions dictate. One of these conditions is when the lane is too narrow to safely share side-by-side. See more on the safety discussion at Where to ride on the road.
Another excellent, as usual, Legally Speaking with Bob Mionske, Two-by-two, covers the two abreast issue, covering specifically a situation in Wisconsin. Here’s the low-down on Arizona law: Continue reading “Two abreastness”