Double coin tires

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Pablo-UA, Sep 25, 2012.

  1. heavyhaulerss

    heavyhaulerss Road Train Member

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    BEEN looking at yoko's too ,just cause they are on sale at the loves & reasonable prices. I think I can make it til spring with my drives, I will be weighing options until then. I may buy some between now & then if I get a good enough deal. I would much rather overpay for quality, then under pay for junk. I can't stand a bad ride, a bouncing tire due to my cheap az$ putting on a cheap tire. though I've been known to make unwise decisions now & then.
     
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  3. GrapeApe

    GrapeApe Road Train Member

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    It depends on the aplication and driver. We will never see anything close to 250K tires. We're lucky to get 120K. First off, we run 255/70R22.5 drives, which don't last as long as 295's to begin with. Plus we haul cars and have a lot of tight paved lots to manuver in, so scuffing is always a problem.

    For our application, we've found that Goodyears work great for certian drivers (good ones), but feather up bad on drivers with a heavy foot. With a good driver though, they can go 150K, so we have a few trucks tat run them. The Yoks, Michelins and Continetials all seem to get about the same miles (110-120K), so we go with what is cheapest at the time.
     
  4. rollin coal

    rollin coal Road Train Member

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    Guys running similar operation to me are getting 350K+ out of Michinlins on drives. I pull a dry van regional, nothing really special about it, light loads mostly... ...really ought to be able to swing better than 250K out of drives...
     
  5. killroy

    killroy Light Load Member

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    I'm running Goodyear G372's 11R 22.5 on my drives an should get over 300,000 out of them on dedicated run pulling 45,497 in a dry van. For Steers I have had the best performance out of Toyo's by keeping the truck aligned I wear them down to 5/32 an pull them to put on my trailer. Never had another brand wear as well except The super hi dollar Michelins.
     
  6. Mack427

    Mack427 Medium Load Member

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    I have had 2 sets of them on new lowboys no issues with them summotumo or wanli's are both a good import tire also
     
  7. carrkool

    carrkool Heavy Load Member

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    Worked at tire shop for years. I have seen all brands have out of round tires. it happens to the best. We where mainly a Michelin dealer. Also a recap shop for Michelin. I would not trust a recap over any virgin. a virgin doesnt sling the cap case.
    I have double coins on my truck and love them. getting great wear great handling. Never choose recap over virgin. and even with cheap virgins you can sell the casings back to alot of shops for around 75.00 a casing for them to recap for their stock. thats how i do my tires. i run virgins when they are done with put new virgins on and sell the casings to the shop i use to work at. 8 drives i get around 600.00 dollar credit on the new set....
     
  8. user41

    user41 Bobtail Member

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    double coin tires for steering are not the best. from personal experience they have high rate of not balancing. many issues with them not being true, which causes lots of vibration. pretty much same issue with all chinese tires.
     
  9. heavyhaulerss

    heavyhaulerss Road Train Member

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    a few years ago my neighbor put kelly steers on & the shop tried 7 tires before they got to 2 they were not out of round.
     
  10. GrapeApe

    GrapeApe Road Train Member

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    I have yet to see any tire really round, they all have a little wobble. Some are really bad though. New tires and wheels are marked. We always put a good stamp on the wheels so we can find it when it's old. Off set some of the run out by matching the high spot on the tire with the low spot on the wheel (dot to dot). Then mount it with 2 lugs and spin it to find the high spot and mark the tire (the tire is usually more out of round that the wheel, so the high spot is almost always dots up. Loosen the 2 lugs and put the high spot up, then tighten the wheel. The little bit of play in the wheel/hub offsets it a tad more. This is how we get the run out to a minimum.

    From what I found, any less than 0.0125" run out is good, they driver will never notice. Over 0.125" or so and we usually will have a complaint of a shimmy, so we now pull it back off before we run it if it's over. We've always gotten a replacement tire (so far) without issue. The first few times, they came with a tech rep and did all kinds of measurements, argued a bit, then gave in. They probably just sold those tires to someone else, but we got better tires and now they just replace them without question.
     
  11. rollin coal

    rollin coal Road Train Member

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    It's not always the tire that's out of round either. Those steel rims take a beating. You see these guys bouncing and hopping trailers over curbs and speedbumps - those sidewalls on an aired up tire might as well be sledge hammers on that steel rim. I have seen some newer looking steel rims that were badly warped before. Banging over rough railroad tracks, curbs, potholes a driver that is not willing to be consciencesous of these things and SLOW down taking it easy when they cant avoid curbing can wreck havoc on some rims too...
     
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