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Thread: 285 tyre's

  1. #1
    Join Date
    Oct 2017
    Location
    Tasmania
    Posts
    44

    285 tyre's

    Hi all ,
    I know a lot on here have 255\85\16 tyres on their perentie's , But anyone have 285\75\16

    Yes I agree standard aren't bad , But not for my application , I tend to doddle along around the lakes here in Tas , As soon as you break the crust ,If there is one , down to the diff you go . I find wider tyres a bit better in this sort of situation .

    Anyway just thought someone out there would run them ?

  2. #2
    Join Date
    Feb 2005
    Location
    Bracken Ridge - Brisbane - QLD
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    13,347
    I always thought a taller tyre gives you a better footprint than a wider tyre.

    Although it seems most go wider as going taller buggers up ya gearing

    2000 110 Hardtop

  3. #3
    Join Date
    Mar 2018
    Location
    Tasmania
    Posts
    110
    I actually just whent back to taller (255/85/16) from wider. (285/75/16) I think performance wise they really are on par but to make 285s work well you will want some decent offset wheels- I'd say 0 or -25 and you will also want extended flares. Of which I have some for sale on gumtree in Tasmania. The 255s will work with less modifying, are easier on steering components and throw less mud alll over your car.

  4. #4
    Join Date
    Oct 2017
    Location
    Tasmania
    Posts
    44
    Maybe I should go to the 255/85/16 ...
    another reason for the 285's tho .....If I read the Tasmanian rules correctly ( maybe not)

    It said a 4x4 tyre could be 50% wider than the factory fitment and no bigger that 50mm in diameter than stock .

    going by the tyre caculator , 255/85/16 are about 53 or 54 mm larger diameter than the stock 7.5r16 but 285/75/16 are about 47mm

  5. #5
    Join Date
    Oct 2017
    Location
    Tasmania
    Posts
    44
    Quote Originally Posted by weeds View Post
    I always thought a taller tyre gives you a better footprint than a wider tyre.

    Although it seems most go wider as going taller buggers up ya gearing

    I think your right , It's just that the 285/75/16 are close to the same height ? But still a fair bit wider


    No power steering could be a worry tho

  6. #6
    Join Date
    Mar 2007
    Location
    Canada
    Posts
    445
    A 285 will allow you to run at a lower pressure than a 255. The lower pressure will give you a larger footprint and better floatation.

  7. #7
    Join Date
    Aug 2012
    Location
    Mackay
    Posts
    2,778
    I've run both sizes on my Puma 90 (yes I know that's a little different, but bear with me for a second!)

    As a comparison between 255 to 285 sizes: just as a note - i have the 255s on deep dish HD rims and the 285 on 0 offset dynamic style rims
    - 255 are probably mildly taller (I dont really notice the difference)
    - 285 you can feel a noticable difference in power - as in a bunch less. (I have KM2's in both sizes)
    - 255 are easier to turn the steering, and on a perentie where steering is already heavy I think 285's would be terrible.
    - 255's give better fuel economy. it's not a lot but there is a difference.
    - 285 LOOK great.
    - 255 at the time I priced them were $80-100 more per tyre. (hence why I have a set of 285s.)
    - 255 although don't look as angry etc - they look pretty stock, so I think you'd get away with the size difference before 285s that stick out!

    Not the best pics but just for an idea - Pic 1 is 255s. Pic 2 is 285s. Pic 3 is 255's on the Perentie.

    DSC_0101.jpgreceived_10160585497675147.jpgIMG_20181007_094727.jpg

    '13 D90-TF A bar, APT steering guard/drag link/track rod, snorkel, Rijidij dual bar, cruise cntl,150hp Basremap.
    '75 S3 88-200tdi, R380/LT230, 33s, Paras, disco axles, 4.75HD R&P - Parting, PM me
    '89 FFR - ARN49-047 33's, P/S, leaky canvas, snorkel

  8. #8
    Join Date
    Oct 2017
    Location
    Tasmania
    Posts
    44
    Quote Originally Posted by debruiser View Post
    I've run both sizes on my Puma 90 (yes I know that's a little different, but bear with me for a second!)

    As a comparison between 255 to 285 sizes: just as a note - i have the 255s on deep dish HD rims and the 285 on 0 offset dynamic style rims
    - 255 are probably mildly taller (I dont really notice the difference)
    - 285 you can feel a noticable difference in power - as in a bunch less. (I have KM2's in both sizes)
    - 255 are easier to turn the steering, and on a perentie where steering is already heavy I think 285's would be terrible.
    - 255's give better fuel economy. it's not a lot but there is a difference.
    - 285 LOOK great.
    - 255 at the time I priced them were $80-100 more per tyre. (hence why I have a set of 285s.)
    - 255 although don't look as angry etc - they look pretty stock, so I think you'd get away with the size difference before 285s that stick out!

    Not the best pics but just for an idea - Pic 1 is 255s. Pic 2 is 285s. Pic 3 is 255's on the Perentie.

    DSC_0101.jpgreceived_10160585497675147.jpgIMG_20181007_094727.jpg
    Thanks for the comparison , Any idea what offset the HD rims on the perentie are ?

    I understand why the majority go for the 255 now
    Thanks again .

  9. #9
    Join Date
    Aug 2012
    Location
    Mackay
    Posts
    2,778
    I think they might be ARN1534, off a really early 130. I had a quick google for you but I can't find a conclusive answer to the offset sorry.

    I did find this:

    Land Rover Wheel Specification

    and it suggests a 20.6mm offset. which compared to the 33mm of my D90 sounds about right....

    '13 D90-TF A bar, APT steering guard/drag link/track rod, snorkel, Rijidij dual bar, cruise cntl,150hp Basremap.
    '75 S3 88-200tdi, R380/LT230, 33s, Paras, disco axles, 4.75HD R&P - Parting, PM me
    '89 FFR - ARN49-047 33's, P/S, leaky canvas, snorkel

  10. #10
    Join Date
    Mar 2018
    Location
    Tasmania
    Posts
    110
    They are just about positive 20

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