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Tire question

Discussion in 'XJ Technical Chat' started by Stumplifter, Jun 5, 2014.

  1. Stumplifter

    Stumplifter Well-Known Member

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    2 1/2 seasons on a pair of Dunlop D404's (didn't track milage - doh!). :oops:
    Rear is down to the wear markers, front still has .11" tread depth.

    Dunlop's website says that to change tires when the wear marker is contacted and they call out 1/32". I am measuring the depth at .06" almost twice that depth.

    Will replace the tire very soon . . . Probably stick with the D404.

    Is it normal to have the rear wear that much quicker than the front?
    Is 2 - 3 seasons 'normal' life for tires?



    P.S. valve clearances are in spec!
     
    Stumplifter, Jun 5, 2014
    #1
  2. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    That sounds about right, especially if your valves are in spec. Mine were, last time I checked, and I'm due for a new rear tire this month.

    ;)

    Dave f
     
    hogfiddles, Jun 5, 2014
    #2
  3. lacucaracha

    lacucaracha Member

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    D404's are the best damn tires ever. I got 8-thou out of mine. Probably could have gotten more...
     
    lacucaracha, Jun 5, 2014
    #3
  4. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    I usually go through two rears for each front on the Yamahas, and 3 rears per front on the Norton.

    I got around 10K ~11K out of the D404 on the rear of my '81; but it's a 550 and therefore 100lb. lighter.
     
    bigfitz52, Jun 6, 2014
    #4
  5. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Pretty much two to one for me too

    Dave
     
    hogfiddles, Jun 6, 2014
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  6. rocs82650

    rocs82650 Well-Known Member

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    2 to1.

    Gary
     
    rocs82650, Jun 6, 2014
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  7. Polock

    Polock Well-Known Member

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    P.S. valve clearances are in spec!
    Is that engine valves or tire valves?
     
    Polock, Jun 6, 2014
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  8. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Nice!
     
    hogfiddles, Jun 6, 2014
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  9. bmarzka

    bmarzka Active Member

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    Could be heart valves. I check those every time I get on the interstate.
     
    bmarzka, Jun 6, 2014
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  10. Stumplifter

    Stumplifter Well-Known Member

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    Ball valves . . . :lol:
     
    Stumplifter, Jun 6, 2014
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