Originally Posted by damocles1

An answer to a problem that didn't exist. More marketing from Shimano in an effort their "planned obsolescence" campaign.

They are heavier than regular clinchers, the tires are heavier and only available from one manufacturer (Hutchinson) and they are no more durable...

The marketing says they ride better (questionable) and there's less rolling resistance (questionable)...

Stick with what you have...