I thought some of you might find this information useful...it's not currently posted on Bridgestone's website, so here's the text of an email I got from 'em.

DougR
'00 1.8TQMS

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The tire weights are as follows:

225/45ZR17 - 25
235/45ZR17 - 27
235/40ZR17 - 24

These are shipping weights which may be rounded to the nearest pound.

Same story, different tire:

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225/45/17 23.98 lbs.
235/45/17 25.08 lbs.
235/40/17 25.04 lbs.

I hope this information has been helpful. Thanks for contacting Yokohama Tire Corporation.