Strange Wear on Goodyear Eagle Asymmetric 2

Discussion in 'Non Technical' started by littlechicken, Apr 14, 2016.

  1. littlechicken

    littlechicken Member

    Hi all,
    I'm wondering if anyone else has experienced unusual wear on their Goodyear Assymetric 2 tyres, mainly rear tyres.

    My experience: Over a period of 2-3 years, I started with a set of 4 and with rear 2 wearing down, replaced 2 at a time (moved front pair to rear and put new ones on front.) Have done this twice now, so 8 tyres in total. At time of both 'rear replacements' , the centre of tyre has hit the tread markers well before edge markers, with 1.5-2mm on outside of tyres. To me, the outside still has 2-4000km to go.

    Before you hit me with the 'high pressure' replies, my pressure has never been more than the recommended, in the low 30's (32-34) and for last 5-10K, pressure has been more like 28-29(cold).

    So, I don't think over-inflation is the issue but could be. My driving is usually around 60-75 mins in slow peak hour traffic (Sydney, M2!!!), so a change in temperature shouldn't be causing anything significant. Or is it?

    I love the tyres - so grippy in the wet and they can deal with more than what my suspension can so, love to hear if anyone can suggest a reason. My solution is to go with pressures on the low side but not too low, and closely monitor wear with my verniers!

    Love to hear of your experience or thoughts.
    PS - Apart from this I would recommend tyres without hesitation - awesome performance.
    cheers,
    Rod
     
  2. shineyzx

    shineyzx Member

    Sounds like a fairly good wearing tyre.... normally edges wear before middle (alignment and low pressure issues) how many kms do you average?
    Trust me i work at beaurepaires :p
    Ben
     
  3. Fists

    Fists Well-Known Member

    Tyres that still wear in the middle at 30psi sounds like a blessing, even up at 40 mine always run the outside down faster.

    What tyre and wheel sizes are you running, any stretch?
     
  4. littlechicken

    littlechicken Member

    Hi Ben,
    When I'm driving every day I'll rack up 400km week + whatever the weekend brings.
     
  5. BigCol

    BigCol That's what she said...

    Is there any chance that you are checking / inflating tyres at the same location all the time? If so the pressure gauge may be reading low and you could inadvertently be over inflating. Nothing else makes much sense for centre tyre wear (to a numpty like me anyway).
     
  6. littlechicken

    littlechicken Member

    I have non-standard "Speedy Wheels" from Tyreking, 235/45/17. Sounds like I should be happy with the wear and tear. Not sure what you mean by stretch.
     
  7. littlechicken

    littlechicken Member

    I was worried my digital gauge was not reading correctly (cheap and nasty) so I asked tyre fellas to check pressure before removal - readings were identical.
    Whenever I check, I try to do it within a few km from cold.
     
    Last edited: Apr 14, 2016
  8. littlechicken

    littlechicken Member

    From what Tom says, maybe I should just enjoy them and not worry.
     
  9. Fists

    Fists Well-Known Member

    Was also wondering what width the wheels are, stretch is when the tyre's tread is narrower than the bead width on the wheel, affects the shape of the tyre a bit.

    If you're happy with the life you're getting out of the tyres then I wouldn't worry much about it, probably just a property of that tyre design.
     
  10. RedZedMikey

    RedZedMikey RZM should now be DZM

    Stretch refers to running a tyre that is under the recommended size for a given rim width, which results in the sidewall being stretched and becoming less compliant. Some people use stretch in combination with negative camber to get a wide rim under the fender. OK for drift ... but not my cup of tea.

    You are running a 235-45x17, so by legal definition your rims should be 7.5 to 9.0 inches wide. If you were running those tyres on a 10 inch rim, the tyres would be undersized, illegal by definition, and definitely stretched.

    http://www.lvvta.org.nz/documents/infosheets/LVVTA_Info_01-2009_V2_Tyre_Size_to_Wheel_Size_Compatibility_Guide.pdf
     
  11. East Coast Z

    East Coast Z Well-Known Member

    If you want accurate tyre pressures, you need an accurate gauge.

    Tyre pressures need to be set cold, in addition the tyres shouldn't be driven for more than 1 kilometre before being set, so travelling "a few km" from cold is not ideal.

    What pressures do you set the tyres at?
    Low 30's is rather vague.........
    When replacing only two tyres, the new ones should go on the rear wheels.
     
  12. littlechicken

    littlechicken Member

    Thanks East Coast. Yes vague is probably right. I use 32 but I think when fitted last time they came back at 34. I'll be sure to check before any km in future.

    Will also look to getting a decent gauge. cheers,

    Rod
     
  13. littlechicken

    littlechicken Member

    Wheels are 7.5inch - so by other replies, no stretch.
     
  14. littlechicken

    littlechicken Member

    Just another question. I have always put newest tyres on front - steering being priority over acceleration for normal driving. Your comment surprises me -have I been wrong all this time?
     
  15. shineyzx

    shineyzx Member

    32 wether hot or cold, even a guage thats a few psi out is still on the lower side. Ill keen an eye out at work today see if i get any of the tyres in and let you know if they are wearing the same as yours. Could be by design
    Acually i was thinking... your edges do not have wear indicators that 1-2mm could be fine, when you look at the tyre can you see that the tyre bows (edges higher the middle?) If not you have yourself a great alignment and tyre
     
  16. Tektrader

    Tektrader Z32 Hoe, service me baby

    If they are not over inflated. Its usually because the tyres are fitted on rims that are too narrow. This has the effect of making the centres on wide tyres bow outward and wearing faster than the rest of the tyre.
     
  17. littlechicken

    littlechicken Member

    So at 7.5inch rims, I'm at the narrower end of rim options - so this could be the answer.
    Also, as Ben said, maybe it's a really good combination and I'll stick with it. A front back rotation more often could help a little and I'll get the maximum out of these tyres.

    As I started saying, I am really happy with them.

    Thanks everyone.
     
  18. East Coast Z

    East Coast Z Well-Known Member

    In answer to your question -

    http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=52

    A wealth of information is available here -

    http://www.tirerack.com/tires/tiretech/tiretech.jsp

    This is the tyre pressure gauge I use -

    http://www.longacreracing.com/produ...pensated+Digital+Tire+Pressure+Gauge+0-60+psi
     
  19. littlechicken

    littlechicken Member

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