Tyre Comparisons





Page 1 of 2 1 2 LastLast
Results 1 to 20 of 21
  1. #1
    Join Date
    Jan 2014
    Location
    Shelley Point
    Age
    59
    Posts
    250

    Default Tyre Comparisons

    Interesting comparisons on tyres in the new SA4x4 magazine i.e. ...... and more
    Attached Images Attached Images  

  2. #2
    Join Date
    Jan 2014
    Location
    Nelspruit
    Age
    56
    Posts
    1,705

    Default Re: Tyre Comparisons

    When I read the article I thought again about a question that I thought about for a while.

    Let's say I normally drive with a tyre pressure of 2.3. When I do a 4x4 trail (not sand) I will most likely go down to say 1.6. This will give me better traction. Why is this? Due to the bigger footprint or due to the "softer" tyre. If footprint and I have a loaded vehicle running the tyres at 2.3, but with the load the footprint is the same as empty at 1.6; will I have the same traction?

    And I suppose I can ask the same question when driving sand. What plays the biggest part? The bigger footprint or the deflation?

  3. #3
    Join Date
    Sep 2006
    Location
    Plett/Paulshof
    Age
    53
    Posts
    2,873

    Default Re: Tyre Comparisons

    There is a mistake on that page where they mixed up the GY and Yoko....
    2016 LC 200 VX, 2019 VW Tiguan 4motion 2.0tsi(work vehicle), 2019 FJ Cruiser, Bush Lapa Baobab 1873, Fusion 17 boat-Yamaha FT100hp 4st.

  4. #4
    Join Date
    Jun 2010
    Location
    Welkom
    Age
    43
    Posts
    458

    Default Re: Tyre Comparisons

    Quote Originally Posted by Daniek View Post
    And I suppose I can ask the same question when driving sand. What plays the biggest part? The bigger footprint or the deflation?
    Maybe i am misunderstanding your question/statement, but thats the same thing, the bigger (longer) footprint is caused by the deflation.
    05 Mitsubishi Pajero LWB 3.2 Did GLX

  5. #5
    Join Date
    Oct 2009
    Location
    Sasolburg
    Age
    40
    Posts
    1,694

    Default Re: Tyre Comparisons

    Quote Originally Posted by BruceHun View Post
    There is a mistake on that page where they mixed up the GY and Yoko....
    That's not the only mistake. In the explanation the footprint length is quoted in mm (Geolander 33.1mm) instead of cm...
    If Force is not the solution, not enough of it was applied....

  6. #6
    Join Date
    Aug 2013
    Location
    Forest Hills, KZN
    Age
    40
    Posts
    3,009

    Default Re: Tyre Comparisons

    Quote Originally Posted by Pietsweis View Post
    That's not the only mistake. In the explanation the footprint length is quoted in mm (Geolander 33.1mm) instead of cm...
    Yep, annoying.
    2010 LR Discovery 4 V8 HSE - Lifted with IIDtool, Powered by Petrol and Running on Cooper AT3 LT (new spec) 265/65/18s [Imvubu]
    2004 LR Discovery 2 Td5 GS - mods in thread en route. (Ingwe)


  7. #7
    Join Date
    Jan 2014
    Location
    Nelspruit
    Age
    56
    Posts
    1,705

    Default Re: Tyre Comparisons

    Quote Originally Posted by MarcoP View Post
    Maybe i am misunderstanding your question/statement, but thats the same thing, the bigger (longer) footprint is caused by the deflation.
    My question goes hand in hand with the previous paragraph where I am talking about getting a bigger footprint from a heavier packed vehicle and not necessarily from deflating. What plays the bigger role in sand; the bigger footprint from a heavier load or the bigger footprint from letting air out of the tyre. Lets assume, for arguments sake that my the tyres on my loaded vehicle has the same footprint as my empty vehicle but with deflated tyres.

  8. #8
    Join Date
    Sep 2006
    Location
    Plett/Paulshof
    Age
    53
    Posts
    2,873

    Default Re: Tyre Comparisons

    Quote Originally Posted by Daniek View Post
    My question goes hand in hand with the previous paragraph where I am talking about getting a bigger footprint from a heavier packed vehicle and not necessarily from deflating. What plays the bigger role in sand; the bigger footprint from a heavier load or the bigger footprint from letting air out of the tyre. Lets assume, for arguments sake that my the tyres on my loaded vehicle has the same footprint as my empty vehicle but with deflated tyres.
    The lighter the better in sand...irrespective of footprint.
    2016 LC 200 VX, 2019 VW Tiguan 4motion 2.0tsi(work vehicle), 2019 FJ Cruiser, Bush Lapa Baobab 1873, Fusion 17 boat-Yamaha FT100hp 4st.

  9. #9
    Join Date
    Aug 2013
    Location
    Forest Hills, KZN
    Age
    40
    Posts
    3,009

    Default Re: Tyre Comparisons

    Quote Originally Posted by Daniek View Post
    My question goes hand in hand with the previous paragraph where I am talking about getting a bigger footprint from a heavier packed vehicle and not necessarily from deflating. What plays the bigger role in sand; the bigger footprint from a heavier load or the bigger footprint from letting air out of the tyre. Lets assume, for arguments sake that my the tyres on my loaded vehicle has the same footprint as my empty vehicle but with deflated tyres.
    Quote Originally Posted by BruceHun View Post
    The lighter the better in sand...irrespective of footprint.
    Pretty sure there will be some kind of graph that would illustrate that:

    Heavier in sand due to weight won't have the same traction as footprint due to deflating based on the weight in the sand while deflating to a lower point will have the same traction as if there was no weight but deflated. If i'm making sense.
    2010 LR Discovery 4 V8 HSE - Lifted with IIDtool, Powered by Petrol and Running on Cooper AT3 LT (new spec) 265/65/18s [Imvubu]
    2004 LR Discovery 2 Td5 GS - mods in thread en route. (Ingwe)


  10. #10
    Join Date
    Aug 2012
    Location
    Okahandja, Windhoek
    Age
    67
    Posts
    4,184

    Default Re: Tyre Comparisons

    Tyres need to be inflated for a load to keep the foot print the same else there is too much flex in the side walls, causing heat built up, but in sand you want a bigger footprint, thus you still deflate but obvious not as much as for an empty vehicle, but due to the additional weight you need also a bigger footprint as for an empty vehicle, else it will not float. So a bit a trail and error for a loaded vehicle, as it is not the same as for empty vehicle.
    Last edited by JLK; 2019/12/09 at 02:07 PM.
    Johan Kriel

    LCs, Hilux and Echo Chobe

  11. #11
    Join Date
    Jan 2018
    Location
    CT
    Age
    52
    Posts
    124

    Default Re: Tyre Comparisons

    Quote Originally Posted by Waals View Post
    Interesting comparisons on tyres in the new SA4x4 magazine i.e. ...... and more
    Interesting, thanks. Pity that it's riddled with errors.
    Attached Images Attached Images  

  12. #12
    Join Date
    Jun 2017
    Location
    Vaal or st lucia
    Age
    41
    Posts
    262

    Default Re: Tyre Comparisons

    you deflate to make the foot print longer

  13. #13
    Join Date
    Mar 2008
    Location
    Clanwilliam
    Age
    53
    Posts
    1,466

    Default Re: Tyre Comparisons

    Quote Originally Posted by Leanercamper View Post
    Interesting, thanks. Pity that it's riddled with errors.
    That relates to a very poor article!
    2011 FJ Cruiser
    2018 Hilux 2.4 4x4 D/C
    Afrispoor Serval

  14. #14
    Join Date
    Aug 2012
    Location
    Okahandja, Windhoek
    Age
    67
    Posts
    4,184

    Default Re: Tyre Comparisons

    Quote Originally Posted by vidalbum View Post
    you deflate to make the foot print longer

    Ja, but all tyres bulge also when deflated
    Johan Kriel

    LCs, Hilux and Echo Chobe

  15. #15
    Join Date
    Oct 2009
    Location
    Sasolburg
    Age
    40
    Posts
    1,694

    Default Re: Tyre Comparisons

    Quote Originally Posted by JLK View Post
    Ja, but all tyres bulge also when deflated
    Agreed, the footprint does get a bit wider with deflation but not by nearly as much as the length difference.
    If Force is not the solution, not enough of it was applied....

  16. #16
    Join Date
    May 2016
    Location
    East London
    Age
    68
    Posts
    2,236

    Default Re: Tyre Comparisons

    Quote Originally Posted by Pietsweis View Post
    That's not the only mistake. In the explanation the footprint length is quoted in mm (Geolander 33.1mm) instead of cm...
    Only dress-makers work in cm!!
    "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity" - Martin Luther king Jr

    2006 VW Touareg V10 TDi
    (currently done more than 407 000 km)

  17. #17
    Join Date
    Oct 2009
    Location
    Sasolburg
    Age
    40
    Posts
    1,694

    Default Re: Tyre Comparisons

    Quote Originally Posted by 4eTouareg View Post
    Only dress-makers work in cm!!
    And civils contractors...
    If Force is not the solution, not enough of it was applied....

  18. #18
    Join Date
    Jun 2016
    Location
    Centurion
    Age
    32
    Posts
    49

    Default Re: Tyre Comparisons

    I would also like to know how much each tire weighs.

    Heavier is not always better.

  19. #19
    Join Date
    Jan 2020
    Location
    Paarl
    Posts
    1

    Default Re: Tyre Comparisons

    Bought the SA4x4 and must say the errors in the article are horrendous.

    In the footprint lenght section, is the comment section or the spreadsheet section wrong, or are both wrong.

    Any ideas as to what is the correct figures. Hoping SA 4x4 is here to clarify all these mistakes.

  20. #20
    Join Date
    Aug 2009
    Location
    Durban
    Age
    35
    Posts
    2,288

    Default Re: Tyre Comparisons

    Quote Originally Posted by Takashi View Post
    I would also like to know how much each tire weighs.

    Heavier is not always better.
    Heavier is generally worse but you have to get the balance between durability and light weight.

    My Goodyear Wrangler Adventures in 245 / 70 R 16 are just over 16kg each compare to a BFG AT in the same size well over 20 kg.

    4kg change in unsprung weight / corner is massive but if the vehicle is loaded and on challenging roads / rocks etc its obviously worth the trade-off in better suspension required and worse fuel consumption / braking etc.

    BUT for more than 50% of people the savings in wear and tear and fuel probably suggests a lighter tyre is better.

    BUT proper off-road tyres look so much better haha
    Andrew

    2010 Mazda BT-50 3.0 CRDi

Page 1 of 2 1 2 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •