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Thread: 255/70/16 vs 245/75/16 KM2's for a P38 - First post :)

  1. #1
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    255/70/16 vs 245/75/16 KM2's for a P38 - First post :)

    Firstly, hello! I have just bought a 2001 P38 that I plan to use daily but also want to make a few mods for weekend off roading. Starting with tyres and the Faskit EAS emergency kit.

    After much research I got my tyre choice split between these two sizes. In reality will the extra 10mm in diameter of 245/75 make any reasonable difference over 10mm extra width of the 255/70 especially considering tyre wear after a few 1000km's.

    Going for the BF Goodrich KM2's

    Is the light truck rating on the 245/75/16 purely based on the size?

  2. #2
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    Welcome to the forum mate!

    A good thread to talk about! There have been multiple topics raised over tyre sizes on our beloved's! Each to their own with sizes though (search function is your friend)! We have a few P38's running KM2's here. Mine is one, on the 255/70's. another I'm aware of on 265/75's and Paul on 255/85's! May even be one lurking around on 285/75's I think. Mine have worn 2mm over 30,000kms (set of 6). Not sure how the other lads KM2's are doing. I am also running a set of them in 245/75 on my Isuzu D-Max and have experienced great wear so far.

    Size is a personal thing and I'm sure either one will perform the same despite the marginal difference in size.

    Cheers
    Keithy
    Last edited by Keithy P38; 27th October 2012 at 06:28 AM. Reason: Greeting our new member!

  3. #3
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    Cheers Keithy,

    This was my final decision to make after a lot of researching, thinking the 10mm extra width may be preferable. Will make the call on the day of purchase. I am trying to find a set of wheels to put them on too (keep my current as spares), preferably the land rover rims as I heard they have good beading and are a lot less likely to throw wheel at low pressure. I've found a set 16x7, do you know if these take them ok or do I need the 16x8?

    Plan on getting the rims powdercoated, black car, maybe a gun metal grey? Important stuff

  4. #4
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    Yeah 16x7 will be fine for either of your choices. I have also stuck with factory alloys for the same reasons as yourself!

  5. #5
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    Picked up a set of 16x8's and going for the 255/70/16's, wheels in pretty good condition. Might not bother with getting them powdercoated, spend the money somewhere else more worthwhile..

  6. #6
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    Good choice mate! I've been happy with mine so far!

  7. #7
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    Yeh I'm running the km2's in 265/75/16 and no regrets so far, as mentioned in the thread I started a few months ago.

    http://www.aulro.com/afvb/p38a-range...re-thread.html

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    Saw that link pbrown, clearly you have gone through the same thing. With your 265/75/16 do you know if they scrub when it's on the bump stops. I just don't want to be completely stuck in the event of complete EAS failure. I am running standard suspension at the moment, plans for the Gen 111's in the future when the $$ allows. I can cope with very minor scrubbing but as said don't want to become immobile or rip out liners!
    Cheers guys, I know this has been thrashed out on many forums but good to get pecific KM2 info!

  9. #9
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    Well they drive in a straight line fine and I think on full lock they are OK but I haven't been too tempted to try. But they do rub a little when half turning off memory. Probably still drivable, but I would be concerned doing damage for any proper driving.

    But this is easily fixed cause I have packers to extend the bump stops in the field, well extend the bump stop plates actually. Never used them yet though.

    But its a little more diff clearance that got me, and if in the odd chance something happens well I think I am prepared.

  10. #10
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    And this is only a problem if you pop a bag.

    EAS fault can be fixed using the emergency air kit. I have also added a switch on the dash to kill the EAS if a fault comes up and before it drops to the bump stops.

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