Are you sure? I have been scouring the nets to find that spec. I've called Ford SVT twice and they don't have the spec. I did find one PDF file that listed a shipping weight of 41 lbs. I'm pretty sure I'm going to try to get that option off my build list tomorrow as I really want light weight wheels. I will likely order Centerline Forged wheels and have them machined to take hub centric rings.