3/7     What's people's general opinion on puncture-proof inner tubes vs.
        putting sealant-type stuff inside a normal inner tube? - norby
        \_ what the hell are you talking about?
           \_ puncture-proof is a self-cancelling phrase.  And those things
              weigh a ton.  Pump up your tires more often and don't worry
              about it, is my advice. -tom
            \_Polyurethene (sp?) tubes aren't that heavy, neither are Latex
         tubes, both are puncture resistent. Also, try Kevlar belted
         tires....light and strong...
         \_ Normal tubes are polyurethane.  Latex tubes need to be
            pumped up every day.  Kevlar belted tires do practically
            nothing to reduce flats and significantly affect your
            ride.   -tom
                   \_ Normal tubes are butyl rubber.  ask someone who has
                      $pent many a $ on cheap regular ones.
                           - adoruk
            \_ OK, if "normal" means "bought at K-Mart"