You are just guessing..........I know several people that work in a local
retread shop and was a truck driver for a few years. The pieces on the road
ARE usually caps. Some(actually most) do have cords in them. Along with
underinflation, overloading is a big issue with comercial recaps. Passenger
car and light truck recaps are much better today than they were in the 80's
when they got the worst of thier reputation for coming apart but do come
apart if abused.
As far as the casing proving itself that's kida irrelevant.......How many
properly inflated tires have you ever actually seen come apart? I have
owned thousands of tires, several with broken belts/cords and have had maybe
1/2 a dozen actually come apart. Retreads included.
From watching the process of recapping heavy truck tires there are several
steps in the process and alot of tires that come in do not pass each step of
the process due to defects(holes, broken cords, etc.) but some bad ones do
get by as USUALLY the inspection of the casing is only visual and as long as
the tire looks good when it comes out the next test is the road.
So basically if it has large ragged edges then it is likely a piece of a
new tire.....If it is a piece of tread that looks like it may have had glue
on the inside it's a bad cap. Just ask a truck driver the next time you
come near a truck stop about cap separation and the fines the DOT imposes if
you are caught driving with a bad cap these days.
Sorry for the long post, Mike
----- Original Message -----
From: "Tom Hargrave" <[EMAIL PROTECTED]>
To: "'Mercedes mailing list'" <[EMAIL PROTECTED]>
Sent: Monday, November 07, 2005 7:19 AM
Subject: Re: [MBZ] Retread - was: Pulling to one side
I'd agree with Fmiser.
I spend over 50,000 miles a year on the road and I've seen more than a few
tire separations "in action". Every one I saw was a blowout, where there
was
a big 'bang' and lots of stuff in the air, including the tread. I've seen
a
truck tire tread fly up and clear three cars. Those tires that I could see
were a mangled mess. If they were just tread separation then the tire
carcass would still be inflated.
Thanks,
Tom Hargrave
256-656-1924
www.kegkits.com
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Fmiser
Sent: Monday, November 07, 2005 2:53 AM
To: Mercedes mailing list
Subject: Re: [MBZ] Retread - was: Pulling to one side
rumor has it that [EMAIL PROTECTED] wrote:
Tread may be good, but you can bet down the road you'll be seeing your
tire sheading rubber like a bad retread on a semi.
Okay.
I should probably just let this go by, but...
Very rarely is that big chunk of tire you see on the road (drivers often
call them "alligator") from a retread.
If a retread fails and the tread comes off, there would be no steel cords
in
loose pieces 'cause the cords are all in the casing.
Often a retread is _more_ reliable than a new tire because the casing has
already proven to be good.
Anyway, I have pulled a whole lot of dead tire pieces off of the highway
(my
contribution to highway safety) and seen many, many more. Of them, I have
not ever seen a large tire piece that I could be sure did not have any
steel
wire in it.
Of course, this doesn't mean it will never happen, just that it's easy to
think that "It must have come off a bad retread." when there's a big hunk
of
tread in the middle of the road. :)
And for what it's worth - the most common cause of a tire casing coming
apart and tossing chucks at the passing cars is .... under-inflation.
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