Just wondering if anyone knows what sort of difference in rolling diameter between front and rear it takes to upset the crosstrac system on the adventras.

I'm looking at 275/30/20 rear and 245/30/20 front which is a difference of 2.66% according to the 1010 tyre calculator.

If i go back to 225/35/20 front (which i would rather not) the difference is only 1.08%

I don't want to fit the 245 and have the front brakes clamping on around corners etc. and i don't want to hurt the transfer case either.

What is everyone else running on their addy/ava with staggered 20's?

Cheers, Michael.