Thanks for the advice.

I've got those big 1 3/8" (35mm) tires on the 650A commuter and really love how cushy they are, but wish I had them on a faster bike. I was hoping the Mavics would permit them, but 28's don't sound too bad. A quick and jolt-ridden 30 miler up to Highland Park and back the other day on the old Specialized tires convinced me that the 700x25c have to go.

Any reason why the old tires would measure so narrow?