Outer Limits 4x4 Board

G´day,
I´m running 31x10.50 R15 tyres on 15x7 offset rims and would like to upgrade to 32x11.50 R15. Can I use those 15x7 rims or I´ve to fit 15x8 ones?
Thankyou and regards from Spain.

I think a 7 inch rim is on the bottom limit for 10.5 tyres, so I imagine it is unlikely you'll find an 11.5 tyre rated to fit a 7 inch rim. Most 285/75-16 (nominally 11.2 inches wide) require 8" rims according to the manufacturers, although ProComp OK theirs for 7".

When it comes to tyres and rims, I prefer to stick with the tyre manufacturer's recommendations.

Cheers,

Scott