Wisconsin Motorcycle Laws - View All States Motorcycle Laws
We have put together a simple list of the primary Wisconsin state motorcycle laws to help you when traveling through Wisconsin on a motorcycle. These Wisconsin motorcycle laws where confirmed accurate as of the time of publishing and are provided to you as a reference only. For Wisconsin's complete motorcycle laws, please visit the Wisconsin state Motor Vehicle website.

Safety Helmet: Required by law under age 18, required for instructional permit holders
Eye Protection: Required by law
Passenger Age: No Restriction
Helmet Speakers: No Restrictions
Mirrors: One required by law
Headlight: Daytime headlight required. Modulating headlight permitted.
Turn Signals: Required by law
Handlebars: Maximum of 30" above seat
Muffler: The following state law (347.39) does not exempt motorcycles and does not require a sound meter or the engine running. If you search the following in the Wisconsin Legislature http://nxt.legis.state.wi.us/ Wisconsin Statues: 347.39 Mufflers. (1) No person shall operate on a highway any motor vehicle subject to registration unless such motor vehicle is equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise or annoying smoke. This subsection also applies to motor bicycles. (2) No muffler or exhaust system on any vehicle mentioned in sub. (1) shall be equipped with a cutout, bypass or similar device nor shall there be installed in the exhaust system of any such vehicle any device to ignite exhaust gases so as to produce flame within or without the exhaust system. No person shall modify the exhaust system of any such motor vehicle in a manner which will amplify or increase the noise emitted by the motor of such vehicle above that emitted by the muffler originally installed on the vehicle, and such original muffler shall comply with all the requirements of this section. (3) In this section, “muffler” means a device consisting of a series of chambers of baffle plates or other mechanical design for receiving exhaust gases from an internal combustion engine and which is effective in reducing noise. History: 1983 a. 243. Cross Reference: See also ss. Trans 305.20 and 305.39, Wis. adm. code.
Noise Restrictions:
Riding Two Abreast in Lane: All motor vehicles including motorcycles and mopeds are entitled to the full use of a traffic lane and no vehicle may be driven or operated in such a manner so as to deprive any other vehicle of the full use of a traffic lane. With the consent of both drivers, Type 1 motorcycles may be operated not more than 2 abreast in a single lane, but mopeds may be so operated only where the speed limit is 25 miles per hour or less.
Lane Splitting: Not referenced in Administrative Code or Statutes
Insurance: Compulsory Liability (Minimum Limits)(25/50/10) - Financial responsibility required.

These state motorcycle laws very verified as current at the time they were published on this page. Some laws may have been changed or repealed and new laws may have be added. Check with state and/or local authorities for the most up to date laws and regulations.