21 inch tyre query

[Jack3030]

Hi, 

I'm new here and have recently picked up an A7 Black Edition with 21 rotor wheels. The standard tyres are 275/30/21

I'm wondering if it's possible to run 285/30/21? Will they fit on to the rims? Has anyone got any experience of this? 

Thanks in advance, 

[Audi_Addict]

Put the sizes into willtheyfit.com and it will tell you what variations you will have from the standard size

Wheel width is 9j iirc