Bad Idea?

[fenlon]

I'm looking at getting a set of 32x11.5 R15 Bridgestone Dueller M/Ts. I've been told that the recommended rim size for these is 8 to 10 in. wide 15s. I have a set of 15x7's, is it a terribly bad idea to put the 32's on these rims?

Thanks,
Jim

[geeves]

It is pushing the boundries but has been done before.
The tyres will wear slightly quicker in the center but not terribly so but at the same time they are less likly to be pushed off the rims when pushing it hard in mud.
What are you putting the tyres on as there are other factors to consider as well ie rubbing, the change in gearing etc

[fenlon]

The 32's are going on a 1990 bighorn. I was told here that the 32's will rub a little but nothing too serious.

[fenlon]

Also, I don't know much about wheel spacers. Are they a durable fix to rubbing problems?

[geeves]

first question do you have the flairs on your bighorn If not the tyres will be outside the gaurds.
In NZ wheel spacers are not allowed without certification and an engineers report Definatly not a good way to go.
Why do you want 32s as 31s will solve most of these problems and you only loose 12mm of ground clearance

[ben]

i have 31.5*10.5*15 on m 91 bighorn irmscher s (square shape)
and currently have to get these certified, because i have increased the wheel track by more than 25mm (mines increased by 50mm) its a pain in the a*se, especially cosidering the Irmscher r comes with the same size wheel and tyre combination, but such is life,

if you are going to use these wheels and tyres all the time, then i suggest you try and get something closer to the factory width

my 2c

Ben

[geeves]

Have you alway had these tyres as my Bighorn came into the country 6 years ago on the same setup and has never been turned down for a wof even though the tyre presure chart and option code say 215/70/16 The option code is hard for a mechanic to read and the tyre presure sticker mysteriously disapeared (meths removes the glue residue) Mine also is missing the s or r (not my fault) but has factory lookalike flares. When you get the cert done make sure the brakes are working properly esspecialy the rear disk handbrake or life will be esspecialy hard

[Dave]

Ben,
what width/offset rim do you run now? what was the original?
If you can run the 31's on the factory rims, and they dont stick out from the guards then you dont need a cert.

Dave

[Harry]

I'm running 32 9.5 15s on 51/2 in rims.I used those rims because I already had them [pinched them off the family mazda bongo van after it's motor died and it was too rusty to be worth fixing],they're spoked rims and they're chrome.Offset is about 10 mm more than Isuzu so they don't stick out at all but the swampers still hurl some mud around.I did have a small stick jammed in the bead once [running 10 psi]but it didn't cause any problems.I believe even rubber flares need to be certified even if the wheels are original.

[ben]

the ofset of the rims im running now (15x7J) is different to the standard wheels from my truck (16x6JJ), ive done alot of reasearch on this, my father is a vehicle compliancer who works for onroad new zealand, so he talked to one of his L V V C Mates, and they said that technically i do need to cert them, but if a mechanic has failed me he is being a picky bugger who has only geussed that i need certing, my truck hasnt ever had flares but im going to put some aftermarket ones on an hope that the next place doent pick up on it, my old man reckons ill be sweet, but as it is the tread is inline with the gaurds so i need the flares,

Cheers guys