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BFG MT's 33/35x12.5x15 Rim Sizes
Posted: Fri May 13, 2005 11:46 pm
by bogged
Interesting thing from the latest BFG Mud Terrain Brochure.
Tire size --------- Min Rim Width--- Optimum Rim -- Max Rim Width
33x12.5x15 --------- 8.5inch--------- 10inch ------------11inch
35x12.5x15 --------- 8.5inch--------- 10inch ------------11inch
So they have either changed it or was this the was before?
Either way, Me cant see people gettin em engineered on 8's "LEGALLY" anymore...
Posted: Sat May 14, 2005 12:01 am
by YankeeDave
was like that when i bought my first set of bfgs 4 years ago
Posted: Sat May 14, 2005 8:57 am
by Bush65
I can remember that 8.5" was the specified minimum rim width, going back many years.
Posted: Sat May 14, 2005 2:39 pm
by bogged
Bush65 wrote:I can remember that 8.5" was the specified minimum rim width, going back many years.
Then theres no way you could legally run them, as that was the issue with engineers demanding letters from tire manufacturers on rim widths before they would pass it?
Posted: Sat May 14, 2005 3:23 pm
by slosh
bogged wrote:Bush65 wrote:I can remember that 8.5" was the specified minimum rim width, going back many years.
Then theres no way you could legally run them, as that was the issue with engineers demanding letters from tire manufacturers on rim widths before they would pass it?
Bruce I keep reading your posts about this issue and people who have had engineers sign off on their truck keep replying that the engineer gets a letter from the manufacturer to say that the tyre can satisfactorily be mounted on an 8" rim.
Whether it's fair dinkum or not I don't know- I have gone down the 315/75 x 16 route which can be legally mounted to 8" rim.
But if the engineers are passing it what's the problem? If someone has an accident then there's the risk of sueing, blah, blah, blah but I can't see how worrying about this will help anyone, as people in standard cars aren't completely free from the risk of lawsuits either.
Posted: Sat May 14, 2005 3:27 pm
by STUMPY
mine is engineered for 35x12.5 on 8"rims
Posted: Sun May 15, 2005 5:44 pm
by Slunnie
The difference is that some 35x12.5's are approved by the manufacturer to go on an 8" rim, but the BFG's are not. An engineer cant over ride that as the tyre is still not on a recommended rim.
Something I did notice though, was on the US Cooper site, a lot of their 12.5" tyres have a minimum rim spec of 8.5" just like the BFG, but on the Australian Cooper website the same tyres are listed to be fitted onto 8" rims.
Posted: Sun May 15, 2005 5:52 pm
by chimpboy
Are nominally 8" rims all REALLY 8" wide or do some go over/under like with tyre sizes?
Posted: Sun May 15, 2005 5:59 pm
by Slunnie
Well I have seen rims that started life as 7", widened to 8" but the 7" stamp is still on the centre.
Posted: Sun May 15, 2005 8:10 pm
by bogged
Slunnie wrote:The difference is that some 35x12.5's are approved by the manufacturer to go on an 8" rim, but the BFG's are not. An engineer cant over ride that as the tyre is still not on a recommended rim..
yea that was my point.
How can they get all serious and "TIGHTEN" the rules in NSW, if they dont stick to the ones in place now? I think it could be business as usual...