State has a Far Right as Practicable Requirement

Oregon requires a bicyclist riding slower than traffic to stay as close as practicable to the right curb or edge of the roadway, subject to exceptions for passing, turning left, hazards, one-way streets, riding two abreast, and using a bike lane or path.

Allows Two Abreast Riding

Oregon allows riding two abreast within a single lane, as long as doing so does not impede the normal and reasonable flow of traffic.

Single File is Required

Oregon does not require single-file riding; riding two abreast in a single lane is expressly permitted as long as it does not impede traffic.

Has a Safe Passing Law

Oregon requires a motorist passing a bicyclist to leave a safe distance — enough clearance that the cyclist would not be struck even if they fell into the travel lane — with limited exceptions for low-speed streets, physically separated lanes, and passing a left-turning cyclist on the right.

Helmets are required on the road

Oregon requires bicycle riders and passengers under 16 years of age to wear approved protective headgear; there is no statewide helmet requirement for adults.

If Bike Lanes are present, they are required ( except when unsafe )

Oregon requires a cyclist to use an adjacent bicycle lane or path where one has been found suitable for safe use, subject to statutory exceptions for passing, turning, hazards and debris, and specific intersection configurations.

Riders may use the sidewalks

Oregon allows bicycle riding on sidewalks generally, but a rider must yield to pedestrians, give an audible warning before passing them, and ride at safe speeds near crosswalks and driveways; electric assisted bicycles may not be ridden on sidewalks at all.

Does the Impeding Statute Apply to Bikes

Oregon's general impeding-traffic law applies only to motor vehicles, not bicycles. A narrower rule does apply to bicyclists riding two abreast, who must not impede the normal flow of traffic while doing so.

Whether cyclists may treat stop signs as yield signs (the "Idaho stop").

Oregon lets a bicyclist treat a stop sign, or a flashing red signal, as a yield: the rider may proceed through or turn without a full stop as long as they slow to a safe speed and yield to traffic and pedestrians already using the intersection. This does not extend to steady (solid) red lights, where a bicyclist must still come to a complete stop and wait for the signal to change.

Restrictions exist on e-bikes and usage

Oregon classifies electric assisted bicycles into three classes by motor behavior and top assisted speed, and generally treats them as ordinary bicycles. Riders of any class must be at least 16 years old, no license is required, and electric assisted bicycles of any class may not be ridden on sidewalks.

Allows the concept of Contributory Negligence that allows any contributory fault resuls in 'no fault'

Oregon does not follow pure contributory negligence. It uses modified comparative negligence: an injured cyclist can still recover damages as long as their own fault does not exceed the combined fault of the other parties (a "greater than 50%" bar), with damages reduced by their percentage of fault.