How do I translate this tire description into English? On my tire is printed the following:


  25-622 (28 x 1.00 - 700x25c)
  6.8-8.0 Bar, 85-115 psi


I think I know what some of this means but am not sure. BTW, this came standard on my 2012 Cannondale Synapse 600 Alloy bike.
700x25c is the diameter x width (in millimeters) of the tire, and 25-622 (ISO) and 28x1.00 (decimal) refer to the size in two different systems (see Sheldon Brown's Tire Sizing Systems page for more detail). Buy tubes to fit as close to this size as possible. I sometimes have to use 25c on my 23c bike when I'm in an area with limited cycling supplies.

6.8-8.0 Bar is the recommended air pressure range, same as the 85-115 psi.
Bar is a metric measure for pressure, while psi is pounds per square inch. PSI is more common in the US.