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Thread: Tyre regrooving..

  1. #1
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    Tyre regrooving..

    Anyone have experience? I have five Michelin XML 325/85 R16s. Yes, they are huge. They are not really suitable for everyday use but are phenomenal in low grip situations and can be deflated to almost nothing. They are quite dear if you can get them and are a PITA to dispose of. Mine are still roadworthy, just. I took them off the OKA 'cos the poor old Perky has trouble pushing them. New turbo should fix that.

    Like all Michelin big tyres they are regrooveable, and I know someone who has a machine. Michelin publish a guide for this, but not for these as they are not sold here any longer. They have a theoretical regroove depth of 3.175mm, but where is that measured from?

    I can't bring myself to chuck them.
    ​JayTee

    Nullus Anxietus

    Cancer is gender blind.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  2. #2
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    I believe regardless of what Manufacturers state or mould into the sidewalls, regrooving is illegal in this country.
    Regrooving also ruins the tyre's ability to be retreaded, which could be another avenue for your Mitchies.
    If you don't like trucks, stop buying stuff.
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  3. #3
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    Personally, I think retreading is what should be illegal. I don't even like it on drive or trailer tyres.

    However, regrooving is not illegal. Look here.
    ​JayTee

    Nullus Anxietus

    Cancer is gender blind.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  4. #4
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    I stand corrected. My belief was based on out of date knowledge, from a time when regroovable tyres were not available in this country.
    The first regroovable tyres that were available were aimed at suburban service busses, but legislation was lagging behind technology.
    If you don't like trucks, stop buying stuff.
    http://www.aulro.com/afvb/signaturepics/sigpic20865_1.gif

  5. #5
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    John it's not hard to do, we used to regroove 4wd tyres quite often back in the 70's and early 80's.
    Just set the cutter depth on the tool at what you require before you turn it on, let it warm up completely before starting and then away you go. I reckon the manufacturers depth is from a bald case so you would be pretty safe with a just legal tyre. We found it easier to make a couple of shallower cuts rather than one big one, I reckon us oldies would need to take shallower cuts anyway as arm strength isn't what it used to be.

  6. #6
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    It's a fellow OKA owner who has the tool. You probably know him. He would have done it before I guess. I never have.
    ​JayTee

    Nullus Anxietus

    Cancer is gender blind.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  7. #7
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    Don't push too quickly either, or the cutting tool will break.
    If you don't like trucks, stop buying stuff.
    http://www.aulro.com/afvb/signaturepics/sigpic20865_1.gif

  8. #8
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    A mate of mine back in the early 2000's regrooved his truck tyres on his tipper when he was driving for quarry mob.
    Never had a problem with them or the law. That was in NSW.

    DG

    2014 Freelander SE TD4
    2003 Range Rover TD6
    92 disco tdi manual sold
    95 disco tdi auto gone

  9. #9
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    John get the tool owner to give you a lesson and he will probably have a tyre you can learn/practice on as well.

  10. #10
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    Quote Originally Posted by oka374 View Post
    John get the tool owner to give you a lesson and he will probably have a tyre you can learn/practice on as well.
    Yeah...... Knowing him, he probably has a few dozen he'd like me to practice on.

    The XMLs are a fairly simple pattern so it shouldn't be too difficult. Hope the tool has a big enough blade choice.

    IMG_5546.jpg

    Me wondering how they'd go on a D1......

    IMG_5547.jpg

    Made sense on the OKA though. Just limited the highway speed to 80, and on hills etc it meant one gear lower.. But the grip was brilliant.

    Screenshot 2024-04-23 at 8.30.26 AM.jpg
    ​JayTee

    Nullus Anxietus

    Cancer is gender blind.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

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