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Discussion Starter #1
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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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.
 

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Discussion Starter #4
Photos of split in tire

messenger13 said:
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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Bill, how much air pressure are you running in your Metzlers?
 

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BillCav said:
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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Big_E said:
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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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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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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Discussion Starter #10
Split in tire

KBandit said:
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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Discussion Starter #11
Tire pressure.

Big_E said:
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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Discussion Starter #12
KYchris02 said:
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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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...
 

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BillCav said:
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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Discussion Starter #16
Depth of cut

ltcanup said:
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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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?
 

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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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KYchris02 said:
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.
 

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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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