[speedygago]

I purchased some new rims and I need some helping determining the right size.
below is the size of the rims.

Front: 19x8.5 ET 20
Back: 19x9.5 ET 20

Both state CB 72.6

I was thinking going 245/40/19 & 275/40/19
or 245/35/19 & 275/35/19

is there any difference between the two different aspect ratios?

what do you guys think?