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Thread: Tread Trimming

  1. #1
    Member old_dual_rider's Avatar
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    I know there has been talk about tread trimming, the stock rear tire, using a KnobbyKnife or other Hot Knife. Has anyone tried it? I am looking for some real world comments, before I spend the $$ for the Knife, then the $$$ to replace the tire I mess up.



    I just orderd a GP-1 for the front. Now I need a bit more from the back, for the fast approaching mud riding season. Its not that I "plan" on going there, its just where my t-dub likes to take me.



    Thanks,
    1999 Honda ST1100A (to go highway )

    2000 Suzuki DR650 (to go byway )

    2004 Yamaha TW200 (to go anywhere )

  2. #2
    Senior Member lizrdbrth's Avatar
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    Ronnydog has done quite a bit of knifing on aftermarket front tires and his ATV rear tires, but IIRC he didn't find much value to it with the stock knobby. Maybe he'll chime in later. I think he has some insight on a reasonably priced groover that works pretty well, too.



    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

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  3. #3
    Senior Member jontow's Avatar
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    Wow.. hadn't considered this option; here's hoping some data (and pictures) come about!
    --

    1997 TW, well loved, a bit modified.

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  5. #4
    Senior Member ronnydog's Avatar
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    Quote Originally Posted by old_dual_rider View Post
    I know there has been talk about tread trimming, the stock rear tire, using a KnobbyKnife or other Hot Knife. Has anyone tried it? I am looking for some real world comments, before I spend the $$ for the Knife, then the $$$ to replace the tire I mess up.



    I just orderd a GP-1 for the front. Now I need a bit more from the back, for the fast approaching mud riding season. Its not that I "plan" on going there, its just where my t-dub likes to take me.



    Thanks,




    My computer is down but this is the idea. http://www.youtube.com/watch?v=vzz3r2zZbwA You san get them on ebay for $60.00. I grooved up my Bighorn 26/9/14 and my Maxxis front.





    Ronydog

  6. #5
    Member old_dual_rider's Avatar
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    very cool, has any one trimmed the stock rear ? if so what pattern did you try, and how did it work out ?
    1999 Honda ST1100A (to go highway )

    2000 Suzuki DR650 (to go byway )

    2004 Yamaha TW200 (to go anywhere )

  7. #6
    Senior Member jontow's Avatar
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    Since the back tire doesn't have a lot of shortcomings to begin with on the pavement, I can only assume the real gain here to be off-road use. On-road, I'd guess cutting the tread will only contribute to faster wear. Does this seem legitimate? I'm familiar with cutting bigger 4x4 tires, but doing it on a knobby isn't something I've ever seriously thought about.
    --

    1997 TW, well loved, a bit modified.

  8. #7
    Member old_dual_rider's Avatar
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    Exactly what I would love the result to be, a working 60/40 tire. We cant buy a Kenda big block, Shinko 244, or IRC GP-1 for the rear of the mighty T-Dub. Airing down helps, but you have to agree, in sand or mud the stock falls a bit short. I would gladly give up a few street miles, to get a bit more capable off road tire.



    I intend to order a Knobby Knife this week. My initial thought is to trim (widen) the space between the center lugs a bit so the result will open up the current 1/4 inch gap to be more in line with the adjacent lug , about 3/8 inch. I am not sure if I should do each one, or some other pattern like every other or every third.



    I don't know a good way to collect real data, of the differences, or if i just need to ride it for a week or so and give a seat of the pants opinion.



    I am not expecting to duplicate what the ATV tire provides. But I have been in situations where I have ran out of tire, long before I ran out of motor, or even skill ( I am not as agressive as many on this forum).



    I am open to any ideas based on fact or theroy, please chime in!!!



    Thanks, for any and all input
    1999 Honda ST1100A (to go highway )

    2000 Suzuki DR650 (to go byway )

    2004 Yamaha TW200 (to go anywhere )

  9. #8
    Senior Member lizrdbrth's Avatar
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    Ronnydog's having puter issues. I'll post this and he can fill in the blanks later.







    PlacerLode likes this.
    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

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  10. #9
    Senior Member r80rt's Avatar
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    That rascal should get a bite.
    Only a fool would attempt it, and God help me, I am that fool!

  11. #10
    Senior Member lizrdbrth's Avatar
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    I've never used a knobby knife but I suspect a tire groover might be more consistent for this type of cut



    PlacerLode likes this.
    I can explain it to you, but I can't understand it for you.

    Powdercoated '87 frame, extended swingarm, YZ fork legs, ATV tire, 14/55, XT350 tank, spliced quick-release seat, disc brake conversion, beeg headlight, beeger rack, Lizrdcooler, Lizrdventz and bunch of other stuff all covered in invisible ink.

    Hidden Content

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