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

More Tantrums: City Halts 34th Street Busway After Threat from Trump DOT

The feds threatened to cut city and state funding if New York doesn't halt all work on the 34th Street busway so the FHWA can review the project.

October 17, 2025

READY, AIM, ‘MISFIRE’: NYPD’s Bike Speed-Limit Effort Only Adds Confusion in Central Park

Two slowly ambling pedestrians were clocked at 19 miles per hour. So what's the point of this, exactly?

October 17, 2025

Friday Video: Drool Over This London School Street

That's cricket! Check out how London transformed a roadway around a big stadium into a play street.

October 17, 2025

Friday’s Headlines: Queen James Edition

State Attorney General Letitia James gave our national security desk reporters Dave Colon and David Meyer the ultimate hat tip. Plus other news.

October 17, 2025

Judge Orders Trump to Restore $34M in Security Funding to MTA

DHS overstepped its authority when it attempted to tie money from the Transit Security Grant Program to the Trump administration's efforts to deport immigrants, Judge Lewis Kaplan said.

October 16, 2025
See all posts