As long as the casing isn't fraying, your tires should be fine to ride. They won't just rip in half and explode. Deterioration due to UV or ozone is easy to see - look at an abandoned bike somewhere, and you'll see the "dry rot" on the tires.
Most black tires use more rubber on the sidewalls, which does protect the casing, but it also makes them less supple. You could get the same effect with brown casings. Functionally, there is no difference between the different colors - it's just dye. Jan Heine Compass Bicycles Ltd. www.compasscycle.com -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
