As you may be aware Michael.I damaged my outer casings on my BBS.So i am looking at going maybe bigger on width as i need new outers anyway.
The size i have now are
front = 7" width with ET30 running 215 40 16 tyres
Rear = 8" width with ET20 running 225 40 16 tyres
Looking to go maybe 7 1/2" on front with 225 40 16
and 8 1/2" or 9 " on rear with tyre. ??????
Now do your stuff.