trips in the United States, nobody's died. Regular bike rides are much riskier: 21 of

every 100 million trips are fatal. Bikeshares are an increasingly popular way

of getting around: systems have popped up in dozens of cities in the past decade.

And fewer people get injured on bike shares too – In DC, the collision rates are 35%

lower than for regular bikes So why would bike shares be safer? A few reasons.

First, they tend to be designed with safety in mind. So this was is a lot heavier, with

a low center of gravity. This one is a lot lighter. This one has really wide tires, this

one has thin tires. Which makes it hard to go very fast.

And that means you're less likely to topple over when you hit a bump or a pothole.

Plus, the bike's bright colors, flashing lights and upright seating make riders easier

to see. The second reason is about where bike shares

are. Bike share stations are mostly located in

dense, urban areas with lots of foot traffic. And drivers tend to be going more slowly.

They're already on the lookout for pedestrians So cyclists are safer.

And third, people who use bike share tend not to be very experienced cyclists.

And weirdly enough, this can be a good thing, because it means they're more cautious riders.

People are less likely to wear helmets. Now, that might make you think, oh, they're more

dangerous. But it actually could be the opposite. One study found that passing drivers stayed

further away from cyclists who didn't have a helmet.

But if you do get in a crash, wearing a helmet significantly lowers your odds of a head injury.

So if you have a helmet, it's a really good idea to wear one. But, if you don't, your

mom's not watching, and the odds, well, they are in your favor

So, there has been one death in Mexico and two in Canada

But, as the study notes, the injury rates there are way

lower for bike shares than for regular bike riding