Hosted on MSN2mon
From using plant rinds to high-tech materials, bike helmets have improved significantly over the past 2 centuriesBut the first bike helmets were very different than ... new standards by releasing the Bell Biker in 1975. This helmet used expanded polystyrene, or EPS. EPS is the same foam used to manufacture ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback