Originally Posted by
mazdaspeed
Frankly, none of those tire options stack up to a good 700c. They're way heavier, have worse compounds for grip, and don't roll as well. Comparing a tan-wall 27" tire to a high TPI 700c racing tire is insane.
Now I see where you are coming from.
I consider 27" wheels purely from a C&V performance standpoint. Just how many of us actively use ultra-light racing tires on our 700C rims, much less try anything of the sort in 630? Very few. Maybe some folks here are running on Conti 4000's and tires of the like, but only some.
The good majority of the folks here are running skinwalls or blackwalls on VLW's (or Conti's red wall), and hardly any qualify to be an extreme-performance tire. Heck, hardly any 27"-wheeled machines from factory were intended for performance; they were sport tourers or tourers - bikes made for a tire such as the World Tour, Pasela, or the Armadillo. Fact is, if you've got 27" rims in the first place, chances are you're not looking for performance exceeding that of any of these three tires.
-Kurt