They are not as light as the 19s
...if you don’t drive far than it’s probably a non issue ..the issue than becomes like other poster mentioned u can’t rotate ..I found on my P85D I was getting 15k miles max in my staggered 21s. 21s are also limited in tire selection ...my X with 22s is cheaper to find tire replacement with more selection ..that said I would never put 19s on my S