A lot of responses say they are heavy, maybe? 5-7#
And you dont need them on a slow car 8.99-10.00 sub 150 mph car

If you have the funds do what you want.

No messing around with rim screws drilling holes in perfectly good rims/tires.

No glue.

You no longer have to deal with the tire store people mounting dismounting and answering stupid questions.

The Best Part :The tire will be more stable and not spin on the rim ever.