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#3397332 - 06/14/14 10:45 AM Re: inspecting used tires [Re: yonyon]
Volvohead Offline


Registered: 05/25/05
Posts: 3550
Loc: SE Pa
Bone yard.

If you know what to look for, you can occasionally find nearly new ones for next to nothing, off of older project cars that got too expensive for their last owners.

Otherwise, used tire vendors are very hit or miss.

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#3397877 - 06/15/14 01:58 AM Re: inspecting used tires [Re: yonyon]
The Critic Offline


Registered: 08/30/04
Posts: 17805
Loc: Walnut Creek, CA
Where do you find a shop that is willing to mount used tires? All of the shops around here refuse to mount anything other than new tires.

Besides, with the cost to mount/bal tires is averaging between $25-$35/tire, so it hardly makes sense to buy used tires.

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#3398349 - 06/15/14 06:44 PM Re: inspecting used tires [Re: yonyon]
eljefino Offline


Registered: 06/15/03
Posts: 24220
Loc: ME
I mount my own and recently added a balancer to my tool kit.

My junkyard has gone from $5 to $20 over the last decade and they are still worth it. I've gotten lucky at yard sales and on CL also.

My worst tires, oddly, were some formerly expensive Michelin MXV4+ Energys. It was not that they were used but they were "squishy" in the sidewalls and didn't hold a balance. My "problem" was they were a spontaneous yard sale purchase, 4 for $25 in like new condition, so I couldn't do hours of research. Seller hated them too! They came on a new Accord or something.

1) Look at the scalloping inside. A tire that ran flat will scrub the rubber where the rim rides. Skip that turkey of a tire.

2) Look carefully at the bead. A tire that gave someone trouble could have had black sealer goo applied around the bead surface. This isn't an immediate write-off, but look for it anyway. Also make sure the bead is rubbery and not hard. It's "preserved" a bit better as it goes through life so if it's hard the rest of the tire will be bad as well.

3) Country of Origin: I'm not a China hater-- there's lots of rubber in southeast Asia, why not put a factory there? I don't know my tire models all that well and a China tire actually has better luck, IMO, of being "modern" in design and/ or manufacture. I try to find the COO to find out what "generation" it is.

4) Directional tires: I try to pass to avoid the headaches-- particularly if I get a "single" as it would look funny and (IMO) could cause a "pull" they were hoping to cure with another directional on the other side.

5) Treadwear rating: I go for "more is better" as I run snow tires and the other three seasons are tame enough. Again, I don't know all the tire makes and design life limits. A temp or traction of B instead of A or AA is snicker-worthy but I'll still go for them if they have a hair more tread than the competition.

6) Load rating, as said above, it can matter. My F150 demands 235/75/15 XL 108s at 41 PSI and that common size comes in ratings as low as 101. Speed rating is also worth noting-- I keep it tame so I don't get super sticky fast wearing rubber as well as a sidewall I can't manually wrestle with my primitive tools.

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#3398755 - 06/16/14 08:59 AM Re: inspecting used tires [Re: The Critic]
stephen9666 Offline


Registered: 12/08/06
Posts: 2566
Loc: USA
Originally Posted By: The Critic
Where do you find a shop that is willing to mount used tires? All of the shops around here refuse to mount anything other than new tires.

Besides, with the cost to mount/bal tires is averaging between $25-$35/tire, so it hardly makes sense to buy used tires.


I'm sure not "all" of the shops are that way. It's generally smaller shops that sell them, not chain stores. I would also go to a smaller shop to get them mounted.

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#3398784 - 06/16/14 09:54 AM Re: inspecting used tires [Re: yonyon]
IndyIan Offline


Registered: 09/23/08
Posts: 5664
Loc: Ontario, Canada
I've had pretty good luck with used tires, 3 sets on the road and 4-5 sets of R-compounds to burn for autocross. I just look for a reasonable age, and no damage. You just have to walk around the wreckers to see that alot of cars die with reasonable tires on them, used just like the ones you have on your car right now.

You do have to get them cheap though, or its not worth getting them mounted.
If you have a vehicle that pushes the limits of load ratings, then maybe its a risk that someone has overloaded the used tire in the past, but any car or fwd based-SUV is quite overtired compared to its practical load capacity.
_________________________
07 Focus ZXW, 5spd manual, 92km M1 5W20
03 Tracker, 5spd manual, 262km, Valvoline Syn 5W30

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#3400213 - 06/17/14 11:19 PM Re: inspecting used tires [Re: Chris142]
soyeahiknow Offline


Registered: 07/29/12
Posts: 89
Loc: NJ and Florida
Originally Posted By: Chris142
i have had zero luck with used tires. i had 8 put on my peterbilt and only 6 made the 60 mile drive home.the rest blew up over about a 2 month period sittting in my driveway. i bought one for my jeep and it had a huge bulge/seperation in the tread. the rest at the used tire stores were regrooved into the cords.

people tend to run tires until they are bald or ruined somehow. imo new tires are my only option here.


I would look on ebay or amazon. Check to see if the seller has a good rating. Also look at the "blemish" tires on ebay. They have no structural defects, they are called blemishes due to cosmetic issues like mispelled or mis-placed letters on the tire.
_________________________
2012 Mitsubishi Lancer ES- pennzoil 0w-20
2004 Acura TSX- Mobil One Synthetic
1996 Toyota Camry

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#3400218 - 06/17/14 11:28 PM Re: inspecting used tires [Re: yonyon]
yvon_la Offline


Registered: 05/20/14
Posts: 740
Loc: quebec canada
Thread has to match rim width ,no but no maybe .yes the standard authorise this wiggle,dont accept it.if your rim is 8.25 inch stamped on it make sure the thread is 8.25 inch.also no rethread on steering (big rig)these sound like simpleton tip but will be very helpfull for even wear etc
_________________________
Truck driver
Nissan versa note s 2014
Mechanicly inclined

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#3400362 - 06/18/14 07:41 AM Re: inspecting used tires [Re: yonyon]
Jarlaxle Offline


Registered: 02/02/12
Posts: 4152
Loc: New England
Uhh...WHAT?!
_________________________
1979 Coupe de Ville, 542 stroker, Super Tech 15W40, AC Delco
1995 Dakota, 5.2, VWB 5W-30, NAPA
2012 Suzuki AN400A, M1 10W-40, Caltric

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#3400371 - 06/18/14 07:55 AM Re: inspecting used tires [Re: soyeahiknow]
eljefino Offline


Registered: 06/15/03
Posts: 24220
Loc: ME
Originally Posted By: soyeahiknow

I would look on ebay or amazon. Check to see if the seller has a good rating. Also look at the "blemish" tires on ebay. They have no structural defects, they are called blemishes due to cosmetic issues like mispelled or mis-placed letters on the tire.


Local chain tire store I used to work at has a "30 day ride guarantee" and we sent tires back to the wholesaler for being out-of-round or having other non-obvious defects.

Wonder where they go. Perfect tread.

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#3400384 - 06/18/14 08:13 AM Re: inspecting used tires [Re: eljefino]
IndyIan Offline


Registered: 09/23/08
Posts: 5664
Loc: Ontario, Canada
Originally Posted By: eljefino
Originally Posted By: soyeahiknow

I would look on ebay or amazon. Check to see if the seller has a good rating. Also look at the "blemish" tires on ebay. They have no structural defects, they are called blemishes due to cosmetic issues like mispelled or mis-placed letters on the tire.


Local chain tire store I used to work at has a "30 day ride guarantee" and we sent tires back to the wholesaler for being out-of-round or having other non-obvious defects.

Wonder where they go. Perfect tread.

I'm sure some do end up on someones car who just puts up with it. I got a unmounted new snowtire at the used tire place, to replace one on the Tracker. I did ask how they got it and got a mumbley answer about sometimes getting singles when that model is done. It turned out it wasn't quite round but I put it on the back and ran it at the factory marshmellow pressure of 28 psi, it was unnoticable in our 60mph driving. The rest of the set was done at the end of winter anyways, so I saved $7-80 with no downside.
_________________________
07 Focus ZXW, 5spd manual, 92km M1 5W20
03 Tracker, 5spd manual, 262km, Valvoline Syn 5W30

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#3400391 - 06/18/14 08:27 AM Re: inspecting used tires [Re: yvon_la]
CapriRacer Offline


Registered: 02/22/03
Posts: 2545
Loc: Somewhere in the US
Originally Posted By: yvon_la
Thread has to match rim width ,no but no maybe .yes the standard authorise this wiggle,dont accept it.if your rim is 8.25 inch stamped on it make sure the thread is 8.25 inch.also no rethread on steering (big rig)these sound like simpleton tip but will be very helpfull for even wear etc


I'm calling this an old wife's tale. When I was designing tires, the allowable rim width range was one thing and what tread width we used was something separate. You would kind of think that if these 2 things were related, it would have shown up as part of our design standards.

Having said that, it is a coincidence that rim widths and tread widths are about the same - and that's a function of the shape of the cross section of the tire, not the Physics. Plus, people don't need to worry about the width of the tread. If they look at the specs for allowable rim width range, they will be OK. No need for the other gymnastics.
_________________________
CapriRacer

Visit my web site: www.BarrysTireTech.com

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#3400402 - 06/18/14 08:48 AM Re: inspecting used tires [Re: yonyon]
Jarlaxle Offline


Registered: 02/02/12
Posts: 4152
Loc: New England
Note that an 11" wide semi truck tire goes on an 8.25" rim!
_________________________
1979 Coupe de Ville, 542 stroker, Super Tech 15W40, AC Delco
1995 Dakota, 5.2, VWB 5W-30, NAPA
2012 Suzuki AN400A, M1 10W-40, Caltric

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