I am going with F14's Forgestars, the weight figures are from the Michelin site.
rim 20x9.5 = 26.5 lbs, Tire 275/35 weight 27.2 total 53.2lbs
rim 20x10.5 = 28 lbs, Tire 295/35 weight 30 total 58 lbs
Steelies, wheel weight 32.9 tire weight 30 = 62.9
per
http://www.camaro5.com/forums/wiki.p...WHEELS___TIRES
Front weight loss 19.4
Rear weight loss 9.8
Total weight loss.
29.2 lbs