Metzler tire splits - BMW Luxury Touring Community
 
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post #1 of 24 Old Mar 13th, 2006, 8:01 pm Thread Starter
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Metzler tire splits

Hi everyone, I know I read a thread some months ago, and can't seem to find it, about Metzlers getting splits in some of their LT tires. I have a back tire that has approx 3500 mi on it and it has developed a 2 inch split that is quit jagged looking and it also looks deep. I took it to my dealer and they implied that it was okay to ride on it that way. I don't believe it's okay to ride on. Please give me your experience's if you had a split in a Metzler and what you did about it.

Thanks, Bill
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post #2 of 24 Old Mar 13th, 2006, 8:36 pm
 
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Some pics might be real helpful here.
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post #3 of 24 Old Mar 13th, 2006, 8:52 pm
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I found a split in my factory-applied ME880 rear tire at about 6K miles. I always check both treads at gas stops just in case something like this occurs. I felt that the cracking was severe enough that I didn't want to continue on my multi-state trip. I was fortunately within an hour of a BMW dealer, so I went there and had the tire replaced for about the same price as I could have ordered a pair of tires for at home.

I asked if they could contact Metzeler about the failed tire. They eventually got back to me weeks later, and claimed the tire wasn't covered because it had a nail in it. Note the nail wasn't there when I found the original crack, as I had checked the whole tire over. But it was my word against theirs, and I had already paid full retail for the tire so I was stuck. When the front tire wore out 7K later, I replaced both with the Avon/BT020 combo and have been running those ever since.

Note the one time I had a BT020 tire develop a bubble, the local tire shop sent it back to Bridgestone. A couple of days later I received half-credit on the replacement tire that was already installed on my bike.

Give it a try, and take your chances. Just remember, the dealer's not riding your bike; you are. If you're not comfortable with the tire, replace it, even if it's at your own cost. It isn't worth compromising your safety or comfort level just to save a few dollars.

Ken
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'13 Dark Graphite Metallic K16GTLD, 24K miles
'09 Magnesium Beige Metallic K13GT, 63K miles
'03 Anthracite Metallic K12LTC, 66K miles
'02 Mauve Metallic K12LTC, 106K miles and sold
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post #4 of 24 Old Mar 13th, 2006, 9:22 pm Thread Starter
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Photos of split in tire

Quote:
Originally Posted by messenger13
Some pics might be real helpful here.
Photos as requested. Also notice the "scrub" mark near the box. I'm told that this is not good because it is small splits in the skin.

Cheers, Bill
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post #5 of 24 Old Mar 13th, 2006, 9:36 pm
 
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Bill, how much air pressure are you running in your Metzlers?
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post #6 of 24 Old Mar 13th, 2006, 9:43 pm
 
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Quote:
Originally Posted by BillCav
Photos as requested. Also notice the "scrub" mark near the box. I'm told that this is not good because it is small splits in the skin.

Cheers, Bill
that looks like a cut from rolling over a piece of debris. i would replace it if i were you.
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post #7 of 24 Old Mar 13th, 2006, 9:46 pm
 
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Quote:
Originally Posted by Big_E
Bill, how much air pressure are you running in your Metzlers?
my question is the same about tire pressure. i've been seeing crazy pressure recommends from riders on this site like 48psi and maybe higher. i immediately thought that's too much. i bet if someone had catastrophic tire failure and the insurance company could prove that you are gassing them beyond capacity ... they could prove willful misuse of the product.
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post #8 of 24 Old Mar 13th, 2006, 9:48 pm
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At end of my 10K miles Alaska trip I had many of those cuts on the Metz set I had on the bike.
I don't use Metz but since I didn't like to change tires on that expecific trip, I installed a new set right before the trip.
At the end (10K miles) both tires were good for nothing but trash.
On my tires I was assuming that the cuts were from those many little rocks on Alaska roads.
I was running 42/46, checked every other day.

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post #9 of 24 Old Mar 13th, 2006, 9:51 pm
 
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A Metzelers Rep told a good friend of mine, "These Metzelers tires can run at 48 to 52 psi all day long without any ill-effects.". Since I have bumped my Metzeler pressures up to 45 front / 50 rear . . . I am getting better wear, and the growl that I once experienced from previous Metzelers at 3K hasn't reared it's head yet in almost 8K.
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post #10 of 24 Old Mar 13th, 2006, 10:14 pm Thread Starter
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Split in tire

Quote:
Originally Posted by KBandit
that looks like a cut from rolling over a piece of debris. i would replace it if i were you.
I was told that a cut doesn't have jagged edges. A cut is usually cleaner than what I have. This comment came from a car tire installer I asked to look at the tire.
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post #11 of 24 Old Mar 13th, 2006, 10:16 pm Thread Starter
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Tire pressure.

Quote:
Originally Posted by Big_E
Bill, how much air pressure are you running in your Metzlers?
I'm running 47 psi as a single rider. 48/50 as a two up rider and the same (48/50) when I have the trailer on.
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post #12 of 24 Old Mar 13th, 2006, 10:35 pm Thread Starter
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Quote:
Originally Posted by KYchris02
i've been seeing crazy pressure recommends from riders on this site like 48psi and maybe higher. i immediately thought that's too much. i bet if someone had catastrophic tire failure and the insurance company could prove that you are gassing them beyond capacity ... they could prove willful misuse of the product.
I was told by the tire specialist at the dealership, where I bought the bike, that I should run 42 front and 48 rear, minimum. That's what I've been doing. So who do you believe? Just about everyone on this site says the same thing. Can we all be wrong?
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post #13 of 24 Old Mar 13th, 2006, 11:02 pm
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just fyi - I'm on my second set, running 42F/48R - now have just over 10,000 miles and the howling is just beginning - but very, very, faint...

Ted

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post #14 of 24 Old Mar 13th, 2006, 11:12 pm
 
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Quote:
Originally Posted by BillCav
I was told that a cut doesn't have jagged edges. A cut is usually cleaner than what I have. This comment came from a car tire installer I asked to look at the tire.
picture a sharp rock or a piece of debris, not a knife blade. that's what it looks like to me.
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post #15 of 24 Old Mar 13th, 2006, 11:45 pm
 
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Its a stone cut.If it aint deep ride it
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post #16 of 24 Old Mar 14th, 2006, 12:26 am Thread Starter
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Depth of cut

Quote:
Originally Posted by ltcanup
Its a stone cut.If it aint deep ride it
The cut is 1/8th deep in the inset part of the tread.

Side note: a friend and I cut a Metzler and a Dunlop tire in half 2 years ago just to see what the core thickness was. The Metzler was a approx, 3/16ths thick and the Dunlop was at least twice that thickness. I'm not trying to make a point, it's was just a test to see what each core thickness was.

Cheers, Bill
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post #17 of 24 Old Mar 14th, 2006, 12:59 am
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It's your tire, and your bike. If you don't like the cut, replace it. If it doesn't seem to be deeper than the tread rubber and you're comfortable with it, then leave it. Personally I don't think it's worth the risk to save some portion of the cost of a new tire. Is a $100 worth risking a failure and potential crash for?

Ken
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'13 Dark Graphite Metallic K16GTLD, 24K miles
'09 Magnesium Beige Metallic K13GT, 63K miles
'03 Anthracite Metallic K12LTC, 66K miles
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post #18 of 24 Old Mar 14th, 2006, 8:50 am
 
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Hmmm... What do the numbers on the side of the Metzlers say for psi? I thought they were like 40... maybe i read it wrong? I wonder what psi would explode those tires? 60... 70...
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post #19 of 24 Old Mar 14th, 2006, 9:31 am
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Quote:
Originally Posted by KYchris02
Hmmm... What do the numbers on the side of the Metzlers say for psi? I thought they were like 40... maybe i read it wrong? I wonder what psi would explode those tires? 60... 70...
Maximum PSI for the Front M 880 or the B 020 is 42 psi.
Maximum PSI for the rear M 880 or the B020 is 50 psi.

I believe whats stamped on the frame under the seat for recommend psi for the LT is 36 front and 46 rear, at least it was on mt 2002. Though most BMW dealers and many Riders will tell you to run 42 & 48. These are heavy motorcycles with reinforced rear tire ratings and running with low air pressure will usually feather/cup the tires quickly.

John & Cathy
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post #20 of 24 Old Mar 14th, 2006, 1:29 pm
 
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42 psi front & 50 psi rear is what's stamped on the tire. Run even a little less & they will crack. These tires are running at max load & should run max pressure, I bring the front up to at least 44 psi. I wouldn't listen to a tire specialist at a dealer cause there is no such thing.
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post #21 of 24 Old Mar 14th, 2006, 6:26 pm
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The split looks like it is well past the bottom of the groove. The one thing I NEVER gamble on is the tires. If I pick up a nail that penetrates through the carcass, I replace the tire. You never know what damage it may have done to the reinforcement or chords of the tire internally. If you can see any of the internal structure of tire, toss it. You may have to pry it apart with a wide dull blade to see. With a few tools, you can easily change it yourself. Not worth the gamble in my opinion though.....

Paul S.
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post #22 of 24 Old Mar 14th, 2006, 7:39 pm
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Quote:
Originally Posted by messenger13
A Metzelers Rep told a good friend of mine, "These Metzelers tires can run at 48 to 52 psi all day long without any ill-effects.". Since I have bumped my Metzeler pressures up to 45 front / 50 rear . . . I am getting better wear, and the growl that I once experienced from previous Metzelers at 3K hasn't reared it's head yet in almost 8K.

you have a friend? <grin>

Tom

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post #23 of 24 Old Mar 14th, 2006, 7:43 pm
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Quote:
Originally Posted by BillCav
I was told that a cut doesn't have jagged edges. A cut is usually cleaner than what I have. This comment came from a car tire installer I asked to look at the tire.

he was wrong there is no way to know if a tire was cut or not by a smooth or jagged cut, I've seen to many damaged tires over the years, I've seen a railroad spike that left a clean as can be hole it looked like a fine scaplel cut it, I've seen a nail tear a tire to shreds looked like someone used a dull kjnkif to cut into it

Tom

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post #24 of 24 Old Mar 14th, 2006, 7:52 pm
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Quote:
Originally Posted by KYchris02
my question is the same about tire pressure. i've been seeing crazy pressure recommends from riders on this site like 48psi and maybe higher. i immediately thought that's too much. i bet if someone had catastrophic tire failure and the insurance company could prove that you are gassing them beyond capacity ... they could prove willful misuse of the product.
I run 44-455f and 52r on the me880's,

for the ins to deny coverage they would have to get metzler to come in a admit that the tire would be dangerous to run at or over the tires rated psi on the sidewall , which will never happen, also the ins would have a heck of a time proving anything like that happened since tires are designed to run at much higher pressure than is stated on the sidewall, think about it for one second, the tire MUST be able to run at much higher pressures, heat builds up in tires and raises the psi

do you really think for one moment that a tire manufacture would build a tire that can only run a few pounds over it's recomended rating in the sidewall of the tire?

besides it was told to me rated psi is a US DOT requirement. you know how the gov works.....<g>

Tom

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