Originally Posted by
BianchiDave (with emphases changed)
Illegal for slow vehicles to block;
346.59 Minimum speed regulation.
(1) No person shall
drive a motor vehicle at a speed so slow as to impede the normal
and reasonable movement of traffic except when reduced speed
is necessary for safe operation or is necessary to comply with the
law.
http://www.legis.state.wi.us/statutes/Stat0346.pdf
What you missed:
346.02 Applicability of chapter.
(4) APPLICABILITY TO PERSONS RIDING BICYCLES AND MOTOR
BICYCLES. (a)
Subject to the special provisions applicable to
bicycles,
And what are they?
346.80 Riding bicycle or electric personal assistive
mobility device on roadway. (1) In this section, “substandard
width lane” means a lane that is too narrow for a bicycle or
electric personal assistive mobility device and a motor vehicle to
travel safely side by side within the lane.
(2) (a) Any person operating a bicycle or electric personal
assistive mobility device upon a roadway at less than the normal
speed of traffic at the time and place and under the conditions then
existing
shall ride as close as practicable to the right−hand edge
or curb of the unobstructed traveled roadway, including operators
who are riding 2 or more abreast where permitted under sub. (3),
except:
1. When overtaking and passing another vehicle proceeding
in the same direction.
2. When preparing for a left turn or U−turn at an intersection
or a left turn into a private road or driveway.
3. When reasonably necessary to avoid unsafe conditions,
including fixed or moving objects, parked or moving vehicles,
pedestrians, animals, surface hazards or
substandard width lanes
that make it unsafe to ride along the right−hand edge or curb.