Skip to Content
Streetsblog New York City home
Streetsblog New York City home
Log In
Bicycle Safety

U.K. Study Finds Wearing a Bike Helmet May be More Dangerous

ian_walker.jpgWe are certainly still going to be wearing our helmets when we ride bikes on New York City streets, but here is an interesting study by Dr. Ian Walker a "traffic psychologist" from Bath University in Great Britain. Walker found that motorists drove more safely and carefully when passing cyclists who were not wearing helmets. These findings are similar to some of the ideas put forward by David Engwicht in his book, "Mental Speed Bumps: The Smarter Way to Tame Traffic," a very interesting read if you haven't already picked it up.

As reported by the BBC on Monday:

Cyclists who wear protective helmets are more likely to be knocked down by passing vehicles, new research from Bath University suggests.

The study found drivers tend to pass closer when overtaking cyclists wearing helmets than those who are bare-headed.

To carry out the research, Dr Walker used a bike fitted with a computer and an ultrasonic distance sensor to find drivers were twice as likely to get close to the bicycle, at an average of 8.5cm, when he wore a helmet.

The experiment, which recorded 2,500 overtaking motorists in Salisbury and Bristol, was funded by the Engineering and Physical Sciences Research Council.

"This study suggests wearing a helmet might make a collision more likely in the first place."

Dr Walker thinks the reason drivers give less room to cyclists wearing helmets is because they see them as "Lycra-clad street warriors" and believe they are more predictable than those without.

Stay in touch

Sign up for our free newsletter

More from Streetsblog New York City

Trump’s Funding Freeze Has Derailed Transit, Undermining Growth and Economic Opportunity For All Americans: Report

American cities used to have some of the longest per-capita rail networks in the world. Not anymore.

March 11, 2026

New MTA Accessibility Advisory Panel Guidelines Bar Members from ADA Lawsuits

Disability justice advocates the Advisory Committee for Transit Accessibility accused the MTA of marginalizing the panel, which ex-transit boss Andy Byford created in 2019.

March 11, 2026

UPDATE: State Lawmakers Cut Hochul’s Car Insurance Scheme From Their Budget

The Uber-backed plan to lower car insurance rates has drawn criticism from legal professionals, crash victim advocates and state pols who say the legislative changes would strip crash victims of rights.

March 10, 2026

Mamdani’s 14th Street Redesign: The Perfect Opportunity For BRT-Style Bus Stations

A "once-in-a-generation upgrade" to 14th Street offers Mayor Mamdani a chance to make New York City's streets "the envy of the world."

March 10, 2026

The Speeding Situation in New York City Is Even Worse Than It Seems

Speed cameras can’t ticket vehicles with ghost plates — which means we don't know how often their drivers break the law.

March 10, 2026
See all posts