I've got the option to buy a used set of 18" Breyton Inspirations tomorrow in E39 fitment (74mm centerbore and presumably low/middle offsets. I think clearances would work but supposedly these aren't load rated for something as heavy as the X5. I would like to use these as a winter setup and will be ditching the E39 sized tires

How do you know if an aftermarket wheel is load rated to suit something heavier such as an X5?

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03 4.6is | 2000 Mcoupe | 2001 E46