Well, for a cheap and simple product like bike helmets, the answer is pretty simple.

I even got a shorter haircut so my bike helmet would cause less havoc.

I sat down and moved his bike helmet to the floor.

I asked all the girls, "Who wears a bike helmet?"

Students at the school have been recipients for several years of free bike helmets that are given away in an effort to promote bicycle safety.

It's a public health issue like requiring people to wear bike helmets.

The study also reinforced the importance of wearing a bike helmet.

The evidence in favour of bike helmets is pretty weak to be honest.

One was a bike helmet, to indulge his passion for mountain biking.

The coalition also succeeded in getting bike helmets exempt from the state sales tax.