By Erik Noonan
Let’s start with something simple: helmets work, and we think people should wear them. BikeMN makes helmets available at our events, requires them on organized rides, and supports programs that put them in the hands of people who need them. We are not anti-helmet.
But we don’t support mandatory helmet legislation — not because we don’t care about safety, but because we do. Caring about safety means being honest about what the evidence actually shows, and about the full range of harms a policy can cause, even a well-intentioned one.
Getting more people riding is itself a safety intervention
Minnesotans are not moving enough. Research published in Transport Reviews found that on a population level, the benefits of cycling’s physical activity substantially outweigh crash risks — and the benefit curve is steepest at the bottom: the gains are largest when people move from riding nothing to riding something (Götschi, Garrard & Giles-Corti, 2016). People who ride as part of their daily routine have odds of meeting physical activity guidelines more than four times higher than those who don’t (Clarke, Journal of Public Health, 2018).
This context matters for every policy decision we make around biking. Any intervention that reduces ridership — even one with genuine individual safety benefits — has to be weighed against that population-level cost.
Helmet laws create friction for the people we most want to reach
The research on whether mandatory helmet laws reduce ridership is genuinely mixed, and we want to be transparent about that. Some studies find no meaningful effect; others find real reductions. A review of youth helmet legislation at the University of California, Irvine found that statewide laws reduced cycling among covered groups by 4 to 5 percent. Research in Australia found evidence of 29% fewer adults and 42% fewer children riding after mandatory helmet laws took effect (Robinson, 2006).
What is consistent is that these laws create friction — and that friction doesn’t hit everyone the same way. It’s unlikely to deter an experienced rider who already owns a helmet. It’s much more likely to affect people on the margins of riding: those for whom biking is utilitarian transportation, and those who simply can’t afford a helmet. Cities including Mexico City and Tel Aviv have repealed mandatory helmet laws specifically to make bike-share viable, because spontaneous, short-trip riding and mandatory equipment requirements don’t coexist easily.
Enforcement falls hardest on Black and Indigenous riders
Wherever mandatory helmet laws have been examined alongside enforcement data, the same pattern emerges. In Seattle, a University of Washington analysis found that Black cyclists received helmet citations at 3.8 times the rate of white cyclists — over 17% of violations for a population that makes up 8% of the city — and more than half of all citations went to people experiencing homelessness (Campbell, King County Helmet Law Working Group, 2021). In Oakland, Black cyclists are stopped by police five times more often than white cyclists; in Washington, D.C., nearly ten times more often.
Mandatory helmet laws also present a conflict for members of religious communities whose faith requires head coverings — including turbans, hijabs, kippot, and patkas. Depending on its nature, a religious head covering can interfere with the fit and efficacy of a standard bicycle helmet, and for some wearers, removing or modifying that covering is not an option. A law that effectively penalizes people for practicing their faith has no place in a policy meant to protect public health.
Minor traffic infractions, including helmet violations, are routinely used as justification for pretextual stops: warrant checks, searches, and detentions that have nothing to do with helmet safety. King County repealed its helmet ordinance in 2022 after concluding that the law was functioning as a tool for policing the mobility of vulnerable people. Cascade Bicycle Club — a nearly 50-year-old organization that requires helmets on every one of its rides — supported repeal: “Cascade is 100 percent pro-helmet, but the data is clear, this law was harming vulnerable populations.”
We cannot advocate for a more equitable bike culture while supporting a policy that does the opposite.
Minnesota’s own data doesn’t support a mandate
MnDOT’s 2026 Electric-Assisted Bicycle Youth Operation Study — mandated by the legislature to examine youth e-bike safety — is worth noting here. Its recommendations centered on education, infrastructure, and sensible age-based rules. On helmet access specifically, it recommended partnering with school districts to distribute free helmets. It did not call for mandatory helmet requirements. A rigorous, Minnesota-specific safety examination looked at the data and concluded the path to better outcomes runs through access and education, not enforcement.
The biggest safety gains come from infrastructure
A landmark study across 12 major U.S. cities — including Minneapolis — found that cities with more protected bike lanes had significantly fewer fatalities and serious injuries for all road users, not just cyclists (Marshall & Ferenchak, Journal of Transport & Health, 2019). A Harvard School of Public Health study in Montreal found that cycle tracks carried 2.5 times more riders than comparable streets while producing 28% lower injury risk (Lusk et al., Injury Prevention, 2011). A case-crossover study in Toronto and Vancouver found that cycle tracks had roughly one-ninth the injury risk of major streets with no bike infrastructure (Teschke et al., American Journal of Public Health, 2012).
The Netherlands achieved an 80% reduction in cyclists killed per distance traveled over 30 years — through separated infrastructure, not helmet mandates. The U.S. has cyclist fatality rates nearly five times higher than the Netherlands. That gap doesn’t close with a helmet law.
Riders themselves say the same thing. A 2023 qualitative study of cyclists living under Australia’s mandatory helmet law found that they saw it as “a small benefit to safety, but not an adequate substitute for meaningful infrastructure.” They also noted that mandating helmets is an “easy” policy choice precisely because it doesn’t require behavioral change from drivers. Infrastructure is harder. It’s also what works.
What we’re asking for
BikeMN supports education and outreach on helmet use, programs that get helmets to people who need them, and — above all — the infrastructure investment that the evidence shows produces the largest and most equitable safety gains for everyone on the road.
A mandatory helmet law moves attention and limited resources toward a policy with real costs and modest population-level benefit, and away from the work that would actually change the safety picture in Minnesota. We can do better, and the data shows us how.
Minnesota is a national leader in forward-thinking transportation policy — and that didn’t happen by chance. For over 17 years, BikeMN has been at the table, fight after fight, shaping a future where biking, walking, and rolling is safe, accessible, and valued. That work is funded by members like you. Join as a sustaining supporter today at bikemn.org/join — $5 or $10 a month helps ensure Minnesota stays ahead. We all move forward together.
Sources
- Götschi, T., Garrard, J., & Giles-Corti, B. (2016). Cycling as a part of daily life: A review of health perspectives. Transport Reviews, 36(1), 45–71. https://doi.org/10.1080/01441647.2015.1057877
- Clarke, P. (2018). Quantifying the contribution of utility cycling to population levels of physical activity. Journal of Public Health. PMC6088795.
- Marshall, W.E., & Ferenchak, N.N. (2019). Why cities with high bicycling rates are safer for all road users. Journal of Transport & Health, 13, 100539. https://doi.org/10.1016/j.jth.2019.03.004
- Lusk, A.C., et al. (2011). Risk of injury for bicycling on cycle tracks versus in the street. Injury Prevention, 17(2), 131–135. https://doi.org/10.1136/ip.2010.028696
- Teschke, K., et al. (2012). Route infrastructure and the risk of injuries to bicyclists: A case-crossover study. American Journal of Public Health, 102(12), 2336–2343. https://doi.org/10.2105/AJPH.2012.300762
- Bateman-House, A. (2014). Bikes, helmets, and public health: Decision-making when goods collide. American Journal of Public Health, 104(6), 986–992. https://doi.org/10.2105/AJPH.2013.301810
- Campbell, E. (2021). Racial disparities in bicycle helmet enforcement in King County/Seattle. University of Washington, for the King County Helmet Law Working Group.
- Robinson, D.L. (2006). No clear evidence from countries that have enforced the wearing of helmets. BMJ, 332, 722–725.
- Mandatory helmet legislation and risk perception: A qualitative study in Melbourne, Australia. (2023). Journal of Transport & Health. https://doi.org/10.1016/j.jth.2023.101659
- MnDOT. (2026). Electric-Assisted Bicycle Youth Operation Study. Mandated by 2024 Laws of Minn., Ch. 127, Art. 3, Sec. 127.