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  1. #11
    Junior Member SandyN's Avatar
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    Re: PR4s after 20400 km

    Very difficult to photograph; easier to feel.
    Herewith a photo with cupped areas marked.

    Sent from my GT-I8190 using Tapatalk

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  3. #12
    Thats right, Paragon! The_Paragon's Avatar
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    Re: PR4s after 20400 km

    Ive NEVER seen anyone wear out a front faster than a rear tire..

    I always wear out rear tires faster. I don't accelerate excessively hard or anything, but its the drive tire.. its simply going to wear our faster (in most cases)
    a lot of people go through 2 rear tires to their one front (or more depending on the amount of hooligan-ism going on)

    Sandy, The cupping like that is pretty much normal. From my experience, it just the way of the world.

  4. #13
    Junior Member SandyN's Avatar
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    Re: PR4s after 20400 km

    The cupping does not bother me; it just arouses my curiosity as to why it occurs on one side only (and not only to me, by all accounts). I suspect it has to with the way the carcass is constructed.
    The OP says it happens to Australian riders; does it happen on the left to American and European riders?

  5. #14
    Member payneib's Avatar
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    Re: PR4s after 20400 km

    Quote Originally Posted by The_Paragon View Post
    Ive NEVER seen anyone wear out a front faster than a rear tire..

    I always wear out rear tires faster. I don't accelerate excessively hard or anything, but its the drive tire.. its simply going to wear our faster (in most cases)
    a lot of people go through 2 rear tires to their one front (or more depending on the amount of hooligan-ism going on)

    Sandy, The cupping like that is pretty much normal. From my experience, it just the way of the world.
    This. I've always done two rears for each front. There's absolutely no way anyone is putting more force through the front than the rear, long enough to wear it out faster. There's a reason the rears are bigger.

    Sent from my E5823 using Tapatalk
    TownsendsFJR1300: Agreed 100% ^^^^^.

  6. #15
    Junior Member mattwitt's Avatar
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    Re: PR4s after 20400 km

    Quote Originally Posted by payneib View Post
    This. I've always done two rears for each front. There's absolutely no way anyone is putting more force through the front than the rear, long enough to wear it out faster. There's a reason the rears are bigger.

    Sent from my E5823 using Tapatalk
    On these doesn't it depend on the compound? - If you look at this link the compound on the rear is harder than the front.. Compounds 1 and 2 on the front and 2 and 3 on the rear.. MICHELIN Pilot Road 4 - Tires On-road | MICHELIN - Motorcycle - United States - Motorcycle-website -->3 (click the 'Learn More" box on the "MICHELIN 2CT Two Compound Technology"

    PR4s after 20400 km-schema-2ct_imagelarge-png
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  7. #16
    Member payneib's Avatar
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    Re: PR4s after 20400 km

    Yup. It's a harder compound. Because you wear the rear more. It's to make the rear last longer. Notice how it's not needed on the front.

    Sent from my E5823 using Tapatalk
    TownsendsFJR1300: Agreed 100% ^^^^^.

  8. #17
    2 Da Street, Knobs R Gone FinalImpact's Avatar
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    Re: PR4s after 20400 km

    Cupping on the front is a product of limited damping control (compression & rebound) as well not really shoving it into the corners.

    Increased loading and slip can true them up (knocks off the highs) where slow wear over time can lead to feathering/scallops...
    08 Raven w/a few mods...
    R6 Forks, R1 Rear Shock (revalved), 6 Ignition Advance, S1 CAT free Header, SS Mid-Pipe, 2Bro Exhaust, AIS block off plates, Bazzaz Z-Fi Fuel Controller & Z-AFM Data Logger, Air Box mod, CR10E Plugs, 48-Tooth Rear Sprocket, FZ1 Bars, Spider Grips, Adj levers, Powder Coated -Triple, Bars & Rear Sets, Solid mounted rear-sets w/knurled pegs, Dual Headlight, Tail Tidy, LED Combo Brake & Directionals, LED POD lights & Tinted PUIG Wind Screen!

  9. #18
    raj_27 (OP)
    Junior Member raj_27's Avatar
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    Re: PR4s after 20400 km

    Photos of Rear and front wheel with measurements to ware strip.
    Right <---------------------------------------------->Left
    PR4s after 20400 km-20160323_215448_zpstafeies9-jpg

    Right <---------------------------------------------->Left
    PR4s after 20400 km-20160324_071502_zpsbyu0fann-jpg

  10. #19
    2 Da Street, Knobs R Gone FinalImpact's Avatar
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    Re: PR4s after 20400 km

    FWIW This is what chip tar does when you push it in..
    Lots of highway miles but the sides are done...
    08 Raven w/a few mods...
    R6 Forks, R1 Rear Shock (revalved), 6 Ignition Advance, S1 CAT free Header, SS Mid-Pipe, 2Bro Exhaust, AIS block off plates, Bazzaz Z-Fi Fuel Controller & Z-AFM Data Logger, Air Box mod, CR10E Plugs, 48-Tooth Rear Sprocket, FZ1 Bars, Spider Grips, Adj levers, Powder Coated -Triple, Bars & Rear Sets, Solid mounted rear-sets w/knurled pegs, Dual Headlight, Tail Tidy, LED Combo Brake & Directionals, LED POD lights & Tinted PUIG Wind Screen!

  11. #20
    raj_27 (OP)
    Junior Member raj_27's Avatar
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    Re: PR4s after 20400 km

    Quote Originally Posted by FinalImpact View Post
    FWIW This is what chip tar does when you push it in..
    Lots of highway miles but the sides are done...
    Looking at that i got plenty of tread on my rear.

    What do you think of front wearing before rear? also right side wearing more than left?

 

 
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