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Don't use UTQG reading 100%

Discussion in 'Wheel And Tyre' started by vr2turbo, Feb 25, 2016.

  1. vr2turbo

    vr2turbo 5 Year | Silver
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    Many times I have said to follow UTQG rating but not 100% since many say some tyres high treadwear rating but fast wear off, some AA traction but traction not really there but of course there are other factors like road, car, weather etc..

    Just read Tyre Press on EU tyre label and it seems some tyres do not perform to it's label.
    Read more here......http://www.tyrepress.com/2015/03/tyre-test-results-mock-european-label-ratings/
     
  2. y2188

    y2188 Active Member

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    I heard that the UTQG rating is tested on smooth surface, not surface like tarmac is that true? :hmmmm:
     
  3. 6UE5t

    6UE5t Senior Member
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    True, many mid range tires have UTQG on par with UHP tires, for example Toyo C1S or Conti Premium Contact series. Then there are UHP tires with lower traction rating such as RE003 but traction is only for wet traction rating.
     
  4. KenDiriwan

    KenDiriwan Senior Member
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    Truth is, some of the UQTG are just there to meet regulations.
     
  5. Shinjite

    Shinjite Senior Member
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    I follow reviews because already lab rat tested :biggrin:
     
  6. ixeo

    ixeo Senior Member
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    UTQG can only be used to compared tires by the same manufacturer. Because each manufacturer have their own "ratings", which makes cross comparison moot.
     
  7. vr2turbo

    vr2turbo 5 Year | Silver
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    Controlled environment. Once outside, car differ, weight differ, camber, alignment, road condition, route, weather and so on......

    ---------- Post added at 06:12 PM ---------- 6 hour anti-bump limit - Previous post was at 06:00 PM ----------

    Certain tyres purposely built for dry so traction rating is A.

    Got from tirerack:-
    Traction Grades
    UTQG Traction Grades are based on the tire's straight line wet coefficient of traction as the tire skids across the specified test surfaces. The UTQG traction test does not evaluate dry braking, dry cornering, wet cornering, or high speed hydroplaning resistance.

    The Traction Grade is determined by installing properly inflated test tires on the instrumented axle of a "skid trailer." The skid trailer is pulled behind a truck at a constant 40 mph over wet asphalt and wet concrete test surfaces. Its brakes are momentarily locked and the axle sensors measure the tire's coefficient of friction (braking g forces) as it slides. Since this test evaluates a sliding tire at a constant 40 mph, it places more emphasis on the tire's tread compound and less emphasis on its tread design.

    ---------- Post added at 06:13 PM ---------- 6 hour anti-bump limit - Previous post was at 06:12 PM ----------

    Real world test and feedback is always the best....:biggrin:
     
  8. y2188

    y2188 Active Member

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    I see..the UTQG it's for reference only

    Sent from my SM-G7102 using Tapatalk
     
  9. vr2turbo

    vr2turbo 5 Year | Silver
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    As bro. ixeo mentioned, it may differ between manufacturers but actually there is a standard but whether they follow is another matter.

    Standard are as follows:
    In 1997, the UTQG Traction Grades were revised to provide a new category of AA for the highest performing tires in addition to the earlier A, B and C grades. Previously the A grade had been the highest available and was awarded to tires that offered wet coefficients of traction above 0.47 g on asphalt and 0.35 g on concrete. Today the grades and their traction coefficients are as follows:
    Traction Asphalt Concrete
    Grades g-Force g-Force
    AA Above 0.54 0.38
    A Above 0.47 0.35
    B Above 0.38 0.26
    C Less Than 0.38 0.26
     
  10. Izso

    Izso Boooooossst
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    Real world test is not really best, more like personal test using personal test on regular running road is the best. I loved the Federal RSR. But everyone I know says it's noisy, there are others better than it, etc etc. I say screw you, Federal RSR is king. :thefinger: And I hate soft sidewall tyres now.

    So ultimately it's all personal choice. That's what I think la.
     
  11. 6UE5t

    6UE5t Senior Member
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    It can happen whereby a tire can already exceed the concrete rating (say 0.4) and yet to reach the asphalt rating by a hair (say 0.53) but then they just rate it as the higher rating AA.
     
  12. y2188

    y2188 Active Member

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    Thanks for enlightened me hehe

    Sent from my SM-G7102 using Tapatalk
     
  13. 6UE5t

    6UE5t Senior Member
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    Yes, of course in the end it's all personal preference but to me, if a tire consistently performs better or at the higher end in many reputable tests, I do take that into consideration. Coz that means that tire must be pretty good to get praises by many professional testers which are surely better equipped and skillful at assessing tires to the limit than ordinary drivers like me.
     
  14. Shinjite

    Shinjite Senior Member
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    Have you tried the RSRR yet? :biggrin:
     
  15. vr2turbo

    vr2turbo 5 Year | Silver
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    If off by 0.01 then the feedback won't be too far off, but for some the wet handling & traction is a big gap....lol:biggrin:
     
  16. 6UE5t

    6UE5t Senior Member
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    Maybe some other tires which are very good exceed those numbers by a big margin hence the difference with the borderline ones are big also.
     
  17. vr2turbo

    vr2turbo 5 Year | Silver
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    Why I say real world test is best. In the past when forum was very hot time, many login and there were plenty of feedback. I collected the data as how many good feedback, feedback on what is good and what is bad and so on. Like bro. 6UE5t mentioned the more good feedback basically that tyre will be good, 50/50 good and bad then average and if more negative sure not good already.

    Like Falken ZE912 when it was launched, many tried and the feedback was really good, and when people ask for recommendation this was one of the popular ones. Even the tyre shops I went to the boss mention the sales very good, must be you recommending....hhahahha Then after a year or two there began some negative feedback of fast wear, less traction and later we found also the traction rating before was AA and the current ones were now rated A only. From there the recommendation stop, as feedback was bad and I think that is how it died a natural death.

    ---------- Post added at 02:16 PM ---------- 6 hour anti-bump limit - Previous post was at 02:14 PM ----------

    Nope, the difference is between expensive and budget tyres......hhahahhahahha:biggrin:

    ---------- Post added at 02:17 PM ---------- 6 hour anti-bump limit - Previous post was at 02:16 PM ----------

    That time RSRR not out yet? After his hero sold off the rims and tyres were sold too, so no need RSRR already.....lol:rofl:
     
  18. 6UE5t

    6UE5t Senior Member
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    I mean the expensive ones maybe exceed those rated numbers by some margin while the cheap ones just barely make the rating.
     
  19. ^pomen_GTR^

    ^pomen_GTR^ Senior Member
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    sure dont trust 100% because manufacturer own test could be differ....


    i just use it as baseline on what to expect....only on your own driving style and condition specific will tell true results... :driver:
     
  20. Izso

    Izso Boooooossst
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    Can't afford the 17" equivalent of the RSRR man.

    Btw VR2Turbo : ZTH buy/sell got someone offering 215/45/17 Nexen AU5 at Rm200. Even if it's pre-GST, that's cheap. DAmmit.
     

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