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A comment on Bicycle helmets haven't changed since their introduction. Parent comment

Re:Bicycle helmets haven't changed since their introduction by davidw on Tuesday June 18, 2013 @03:58PM (#5901635)
Gearing is a massive difference from a bicycle you could buy 100 years ago. It's what allows you to climb something like this, and race down the other side:

http://en.wikipedia.org/wiki/Stelvio_Pass

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Re:Bicycle helmets haven't changed since their introduction by notatoad on Tuesday June 18, 2013 @04:11PM (#5901727)
The derailleur was invented in the 1890s. the gear ratios have changed, but gearing hasn't.
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Re:Bicycle helmets haven't changed since their introduction by davidw on Tuesday June 18, 2013 @04:40PM (#5901926)
There were derailleur type things then, but nothing at all like the wide range of gearing that post WWII bicycles have.

http://en.wikipedia.org/wiki/Derailleur_gears

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