I don't know how you weighed them but bathroon scales normally aren't that accurate at the low end try weighing your self and then yoeuself holding the tire and subtract. You should get a better reading.

BTW I weighed my TSW Blabe 17x7.5 when I got then with no tires (still need tires) and they weuighed 16lbs... on my bathroon scale.

"To strive to seek to find... and not to yield."
Michael J. Kulaga
Michael_97RS@2gntDSM.zzn.com
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http://highlander.dsmpower.com/

Firefly:
Mal: You don't know me, son, so let me put this to you plainly: If I ever kill you, you'll be awake. You'll be facing me. And you'll be armed.