It's a bit more complex than that. The Standard tires have a lower tpi casing, which improves their cut resistance. (Very fine threads are easier to cut.)
The Extralights have a higher thread count, but not the highest TPI Panaracer can do, because spacing the threads further apart makes the casing more supple, rather than a super-dense weave. The blog post David referenced explains it in more detail. Jan Heine Compass Bicycles Ltd. www.compasscycle.com Follow our blog at http://janheine.wordpress.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 http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
