Do I have to ride as far the right as practicable in a bicycle lane in Oregon?
The quick answer: no. A rider can ride in any position in a bicycle lane and still be riding legally.
ORS 814.430 requires Oregon bicyclists to ride as close as "practicable" to the right curb or edge of the roadway if they are riding slower than the normal speed of traffic on that roadway under the existing conditions.
However, 814.430(2)(f) makes it clear that bicyclists riding in a bicycle lane or on a bicycle path are not required to ride to the right.