The AUSubaru.com.au Forums

Just wondering what size tyres are best for 90% on road use 10% off road on a brumby? The standard size i believe is 175/70R13, i'm currently running on 155/75R13 (which are so bad and cheap wangtro brand tyres, terrible in the wet) I'm upgrading the rims to a 14" and was thinking of running sum maxxis performance 185/60R14. If i could get some advice on what other ppl run and how this will affect my turning circle and speedo?

cheers

For 90% onroad and 10% offroad then yeah you'd just need a normal road tyre.
Your speedo will be out a little, my suggestion here is a mental adjustment. Just make sure you drive roughly 5km below the speed limit....closer to 10km when up around 100km/h. The speedo will indicate a speed a little slower than what you are actually driving. If you are really keen then you can get a speedo correction box installed in-line with the speedo cable but it will cost abit.
Don't think it will affect your turning circle, you should be able to turn to full lock without a drama.

The only ones I woouuld recomend are BFGoodrich as they have a thicker sidewall and really hang on in the dirt, I tried all sorts on my brumby and these turned out to be the cheapest to run because once you put a hole in the sidewall of any tyre they are cactus. I was running the 13's as I had plenty of them I can find out what size I ended up running before I changed to outback rims and tyres!

Have a play with a Tyre size calculator, put in the standard size and some other size and look at the percentage difference in the speedo reading under the picture.
Grab a junk mail flyer from a tyre shop and put in what ever is on sale.
If a tyre doesn't list a profile eg (175/75R13 v 185R13) then use 80.
Turning circle wont change unless you go so big they scrub on the inner guards.
I had 185R13 on my Brumby before a got the Lift kit and 14s, they didn't scrub.
Daza.