Nope no weight in the tire but it does have wheel weights. The depends on what size you buy. But I'll tell you he's has the best price and if you go thru a dealer you'll pay more. As he's a good ole boy who believes in selling a quality product to all tractor fans and dealers. If you check out his site which is a capture of of his brochure that's him on the tractor. You might have to wait a few days if you order one as he's making them as fast as he's selling them and looking at expanding to another robot to help catch up as Robby (his robot) is spitting them out as fast as it can. Here's the link to his page again if you want to check it out and give him a call. I know he's shipping them all the way close to Wisconsin and as far a I've seen only one have come back but that was a bad weld when he was doing them with manual production. Looks like the user was trying to break it too, as it didn't appear to be from regular use and like it should have been used.
www.gtcom.net\~nlyn182
Give him a call he'll love chatting with you about one of his rakes.