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Thread: Chipped tyres

  1. #1
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    Chipped tyres

    After a trip to Birdsville over Easter I noticed that my rear tyres (OE General Grabbers) had chipped a fair bit of rubber off the lugs, I assume due to long days running at high speeds on crap roads.After running down to Brissy last weekend, a round trip of 900kms of bitumen the treads are really showing some serious wear on the rear tyres. The fronts are still like new and no I havent rotated them.They've done under 30000ks all up. So is the chipping an ongoing thing, as in once it starts you cant stop it, or should I put them on the steer to try and correct the high rate of wear?
    The Ugly Duckling-
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  2. #2
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    Running your tyres at too high pressure on dirt roads will increase the chippin.
    Running your tyres at too low pressure on bitumen and when at high speed will heat them up more causeing them to wear faster.

    Just sum things to know [img]style_emoticons/<#EMO_DIR#>/biggrin.gif[/img] may not be at all related to your problem.
    I rule!!!

    2.4" of Pure FURY!!!

  3. #3
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    <span style="color:blue">running too soft at high speeds will overheat tyres and can cause blowouts...


    i rotated mine front to rear at 40,000kms......
    my front ones were wearing faster than the rear due to more weight over the front axle(from always driving unladen)

    i have noticed a bit of chiping off road....but nothing worth worrying about....
    yes...same tyres(general grabbers) now at 60,000kms and still going.....</span>

  4. #4
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    <div class='quotetop'>QUOTE</div><div class='quotemain'>my front ones were wearing faster than the rear due to more weight over the front axle(from always driving unladen)
    [/b][/quote]

    my fronts wear more than the rears as well, always have and I have over 300kg in the back all the time.
    The reason the fronts should wear faster than the rears is a combination of drive and steer on the front axle, as well as the OE wheel alignment being 0-2mm toe out.
    Why crumps rears have worn more .....?

    Chipping generally occurs as a result of the rubber compound actually being too hard when used on coarse surfaces, and so instead of the tread blocks giving and conforming on the sharp edges of gravel, etc, they tend to stand up, tear and then break off.
    BFG AT KM's and MT KO's did this when first introduced to Oz (4 years ago ??) and it was resolved with a compound reformulation.
    Cooper ST's also do it, so this is why the ST/C was introduced and is advertised as using a softer compound for gravel/dirt road use. Cooper state they last longer on crap roads, yet have a shorter life on regular bitumen.

  5. #5
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    Originally posted by rick130
    <div class='quotetop'>QUOTE</div><div class='quotemain'>my front ones were wearing faster than the rear due to more weight over the front axle(from always driving unladen)
    my fronts wear more than the rears as well, always have and I have over 300kg in the back all the time.
    The reason the fronts should wear faster than the rears is a combination of drive and steer on the front axle, as well as the OE wheel alignment being 0-2mm toe out.
    Why crumps rears have worn more .....?

    Chipping generally occurs as a result of the rubber compound actually being too hard when used on coarse surfaces, and so instead of the tread blocks giving and conforming on the sharp edges of gravel, etc, they tend to stand up, tear and then break off.
    BFG AT KM's and MT KO's did this when first introduced to Oz (4 years ago ??) and it was resolved with a compound reformulation.
    Cooper ST's also do it, so this is why the ST/C was introduced and is advertised as using a softer compound for gravel/dirt road use. Cooper state they last longer on crap roads, yet have a shorter life on regular bitumen.[/b][/quote]

    Absolutely aggree my 2nd set of BFG M/T's chipped on a trip to The Gulf, as did the Coopers of a mates car, our damage more prevelant Camooweal to Bourke down the border track through Tobermorey/Birdsvile. Lots of sharp rocks/ marble gravel...probably pressure too high and travel too fast combination, but wore OK a couple of 1000km later, leveled out the chips.

    Cheers
    Bryce

  6. #6
    Join Date
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    Originally posted by rick130
    <div class='quotetop'>QUOTE</div><div class='quotemain'>my front ones were wearing faster than the rear due to more weight over the front axle(from always driving unladen)
    my fronts wear more than the rears as well, always have and I have over 300kg in the back all the time.
    The reason the fronts should wear faster than the rears is a combination of drive and steer on the front axle, as well as the OE wheel alignment being 0-2mm toe out.[/b][/quote]
    On the weight bridge, the Disco2 is 1.1T front and 1.2T rear empty
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

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