Stock front rims with 225/40/18 worn Yokohama's 46 lbs.
18x9 Forgestars with 245/35/18 Kumho's 46.8 lbs.
Stock rear rims with 255/35/19 worn Yokohamas 52.1 lbs.
18/10 Forgestars with 275/35/18 Kumho's 49.4 lbs.

The rims themselves are around 18.6 lbs for the 18x9 and 20 lbs for the 18x10. (from memory)

Les