Legal aspects of bigger tyres.

[yowie Advanced Member Find all posts View Profile Close yowie]

maybe try 275/65/17... Only 10 mm change or less going my the OD MM

According to Bridgestone, the difference between 275/65/17 and 265/65/17 is 14mm larger in the D697's. My speedo reading of 100k's is 98 on the GPS

[Guest Close Guest]

Fuel consumption on my 120 was at least 2-3 LPH more with the larger tyres.

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

Adding to the legal aspect may be how your insurer or (if you have one) lease company treats the size change. I think as long as something is legal, most will accept a change, but it couldnt hurt to ask.

A colleague of mine was told by his lease company that a tyre size change was not permitted under his lease - possibly as it was not just maintenance??

[PradoJim Member Find all posts View Profile Close PradoJim]

I agree. Running it by the insurance company is definitely worthwhile although, on paper, if it's legal you should be covered (famous last words). Fortunately I don't have it on a lease so no probs there.

[fatty boy Member Find all posts View Profile Close fatty boy]

For some reason I had thought that my tires are 265/65/18. Today, I went to Jax and asked the guy for a quote and he said are you sure - normally they are 265/60/18.
So,he and I went to out and checked - definitely 265/60
Quotes:
BFG KO2 265/60/18:$450 x 5
BFG KO2 265/65/18:$440 x 5
Fitted/Balanced/Aligned.

Considering 265/70 is biggest you can put - I am assuming 265/65 wouldn't have any issues with original suspension.

[PradoJim Member Find all posts View Profile Close PradoJim]

For some reason I had thought that my tires are 265/65/18. Today, I went to Jax and asked the guy for a quote and he said are you sure - normally they are 265/60/18.
So,he and I went to out and checked - definitely 265/60
Quotes:
BFG KO2 265/60/18:$450 x 5
BFG KO2 265/65/18:$440 x 5
Fitted/Balanced/Aligned.

Considering 265/70 is biggest you can put - I am assuming 265/65 wouldn't have any issues with original suspension.

I think all the previous comments in this thread re 265/70 and 265/75 referred to 17" sizes. I amended my earlier thread about maximum legal tyres sizes and diameter increases to include "R17". 265/65 R18 is only a small increase over 265/60 R18 but I haven't searched the forum to see if they work without issues.

[retroenduro Member Find all posts View Profile Close retroenduro]

interesting post. so im getting a set of (second hand) 275/70 17s on FJ wheels. On reading the SA website it seems this is illegal as they are more than 15mm (42mm) bigger than my standard GX tyres..

this seems a woefully small amount and 15mm is not relative to tyre sizes...i mean if i have something like a unimog or iveco 4x4 (i wish) the wear alone would make my tyre illegal from new vs part worn... or even different tread patterns!

Anyway had a look at the placarded 'official sizes' and it seems in some markets the prado came with a 285/60r18. When i compare this to the FJ wheels and tyres im getting (the 275's) the difference is only 17mm. now add in the fact that they are part worn then maybe im within 15mm although i imagine it will be based on the number on the size of the tyre rather than an actual measurement.

has anyone heard of anyone being done for 3mm or so? it seems that this rule is aimed at folks putting on far larger tyres than standard perhaps? interested to hear peoples thoughts...

[Guest Close Guest]

interesting post. so im getting a set of (second hand) 275/70 17s on FJ wheels. On reading the SA website it seems this is illegal as they are more than 15mm (42mm) bigger than my standard GX tyres..

this seems a woefully small amount and 15mm is not relative to tyre sizes...i mean if i have something like a unimog or iveco 4x4 (i wish) the wear alone would make my tyre illegal from new vs part worn... or even different tread patterns!

It is based on what is printed on the sidewall.

Anyway had a look at the placarded 'official sizes' and it seems in some markets the prado came with a 285/60r18. When i compare this to the FJ wheels and tyres im getting (the 275's) the difference is only 17mm.

Which markets run 285/60R18? 265/60R18 is standard size here in Oz for the VX/Kakadu which is the same diameter as 265/65R17. So for now, in SA, you will need to get your 275/70R17 engineered to be legal.

[retroenduro Member Find all posts View Profile Close retroenduro]

It is based on what is printed on the sidewall.

Which markets run 285/60R18? 265/60R18 is standard size here in Oz for the VX/Kakadu which is the same diameter as 265/65R17. So for now, in SA, you will need to get your 275/70R17 engineered to be legal.

It was from http://www.wheel-size.com/

data below...

Toyota Land Cruiser Prado 2012, 3.0 D 190HP

265/65R17 110H 7.5Jx17 ET25 ET 10-30 6x139.7 M12 x 1.5 106.2 2.2
245/70R17 110H 6.5Jx17 ET15 6x139.7 M12 x 1.5 106.2 2.4
265/60R18 109H 7.5Jx18 ET25 6x139.7 M12 x 1.5 106.2 2.4
285/60R18 116V 7.5Jx18 ET25 6x139.7 M12 x 1.5 106.2 2.4
285/50R20 112V 8.5Jx20 ET25 6x139.7 M12 x 1.5 106.2 2.4

interesting about the 'power output' eh

the 20in wheels are standard on the lexus LX570 which is a prado in drag...maybe russian prados??

how does one go about getting the tyres 'engineered' anyway?

[Guest Close Guest]

You'll need to find an automotive engineer.

[retroenduro Member Find all posts View Profile Close retroenduro]

so an update but (and sorry its a mate of a mate thing) apparently recently the SA regs were upgraded to 50mm see below

http://www.4wdsa.asn.au/files/fwdmat...Tire_Sizes.pdf

woohoo! bring on the big wheels!

[Guest Close Guest]

so an update but (and sorry its a mate of a mate thing) apparently recently the SA regs were upgraded to 50mm see below

http://www.4wdsa.asn.au/files/fwdmat...Tire_Sizes.pdf

woohoo! bring on the big wheels!

"The total ground clearance is not increased by more than 50mm."
requires clarification or rewording because the rear axle on the Prado does not change height with a suspension lift.