Old 01-30-11, 11:42 AM
  #49  
NikZak
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Bikes: 80's Graecross Courier Fixie, 2010 Bauer Suburban, 1988 Thruster 300 Volt BMX

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Originally Posted by Shimagnolo
This is an example of taking automotive technology and adapting it to bikes.
Cars have had "crumple zones" for years.
why does a bike need a rear crumple zone?
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