New 33++ 700 X 32C Tires. Of course, i'm searching for durability, high mileage use, with some flat protection. The 32 part describes (again nominally, in millimeters) the diameter of the tire when inflated. (note that when we're talking abo. Unfollow 700 x 32c tires to stop getting updates on your ebay feed. 700 X 32C Tires - Forums Mtbr Com The bead holds the tire onto the rim.