Helemt Use: Required by law for those under age 18; or operating under a learner's permit; or operating less than one year with license/endorsement; or as a passenger of an operator required to wear protective headgear Eye Protection: No Restriction Daytime use of headlight: Required by law Muffler: No acoustical criteria. Handelbar Height: Handgrips below shoulder height Lane Spliting: Motorcycles 6. Between lines. A person may not operate a motorcycle between lanes of traffic or between adjacent lines or rows of vehicles. More Motorcycle Laws