Helmets are not required on motorcycles by law in the state of MN for riders over the age of 18 unless driving with a permit.
Information about motorcycle-specific laws and regulations in MN here: https://dps.mn.gov/divisions/ots/mmsc/motorcycle-license/Pages/laws-regulations.aspx 82
Motorcyclist Fatalities in MN in 2022 – Deadliest year since 1985 per MnDOT – https://bit.ly/3Npk1yN
CDC Data on Motorcycle Safety here: https://www.cdc.gov/transportationsafety/mc/index.html
IIHS 2021 Fatality Statistics – Motorcycles and ATVs (also compared to passenger vehicle fatalities, and trends 1975-2021) here: https://www.iihs.org/topics/fatality-statistics/detail/motorcycles-and-atvs
IIHS List of Motorcycle Helmet Laws by State – https://www.iihs.org/topics/motorcycles/motorcycle-helmet-laws-table