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Review: Abus Performance helmet | road.cc
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A Cardboard Helmet, To Go With Your Cardboard Bike : The Two-Way : NPR
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Review: Abus Performance helmet | road.cc
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Kranium cardboard bicycle helmet now available for purchase
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Cardboard helmet passes safety tests - BikeRadar
Abus Kranium AKS 1 cardboard helmet - Just in - BikeRadar
Review: Abus Performance helmet | road.cc
