[EB89]

By normal tyres, do you mean not run flats?

In any case, everyone removes run flats and replaces with normal tyres. Its very common

For the 313M 19 Inch M Sport wheels

The stock sizes are

Front 225-35-19
Rear 255-30-19

You can go up a size for fatter tyres without causing any issues.

Front 235-35-19
Rear 265-30-19


Ive personally had the 235/265 setup with Michelin Pilot Super Sports and it works fine.

I went back to the stock size of 225/255 when I replaced my tyres with Michelin Pilot Sport 4S tyres a few months ag.

Adding spacers or lowering could make things scrub and you will need to do more research.