Kevlar¨-bead bicycle tire

          On loan from Greg Tobias

          A spool of Kevlar¨ fiber

          On loan from DuPont

        Unlike traditional, metal-bead tires, Kevlar¨ ones can be folded up and carried on trips. More importantly, Kevlar¨ lowers the tire weight by about one third, significant for a bike racer.

         




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