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Discussion Starter #1
This summer I replaced my stock tubes and tires with MEFO tubes and tires. I had them professionally mounted and balanced.

A couple of weeks ago I got a letter from the business I purchased the MEFO tubes from with the following notice:

"Recently two different customers notified us that the MEFO inner tube installed in the front tire of their KLR 650 motorcycles suddenly deflated. The valve stems of the inner tubes appear to have separated from the tubes, allowing the air to escape. There is no way at this time to tell if the valve stem separated from the inner tube after being damaged or impacted somehow, or if the bond between the valve stem and the inner tube failed."

Tonight I was riding my KLR 650 and the front tire "suddenly deflated" as stated above from the suppliers letter. Luckily, I was in a low traffic area at the time and was able to get the bike out of the intersection. I DID NOT impact anything, etc the tube just gave way. Out of desperation I tried to put air in the tire after pushing the bike a mile, but I knew the tube had failed and the effort would be futile, but it was worth a try, BUT the tube was GONE.

The tube failed with about 120 miles of street riding on it. I have not at anytime impacted any objects.

The letter from the supplier specifically said they had reports of front tires failing...it did not make any note of rear tube failures.

As a side note I love the MEFO tires. I have not put many miles on them yet, but they are great.

Rick Thompson
La Vernia, TX
 

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I have two front rims, one with a rim lock and one without. The one with the rim lock has never had a flat while the other has had two different tube deflate due to the valve stem ripping. I run the same tube in both. Not a defense of the product or a defamation of the bike shop or KLRs front rim, just wondering about the reason for the failures.:63a:
 

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I didn't know MEFO made tubes?? I've always run IRC HD tubes..

At least you got the notice BEFORE the tube failed.. At least it was less of a surprise.

I think part of the reason I haven't had an issue with tires rotating on the rim while not running a rim lock is because I run higher air pressure when I'm street riding and don't air down more than once or twice for offroading during a tire's lifetime..
 

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Glad to hear you didn't have to test your riding gear to get to a stop. Be interesting to find out how the supplier will handle this now. Please keep us posted.
 

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Discussion Starter #5
The supplier is providing a free Bike Master tube as a replacement. And that is fine, but at worst my front tire maybe trash as well, not to mention the expense of changing out the old tube, tire removal, balancing, etc. The worst part was being stranded 30 miles from home at night. Yea, I had the advance notice, so I guess I should have not ridden the bike with the tube. Since there was no way to tell if I had one of the suspect tubes I took a gamble...also see the note below.

MEFO acknowledges they had some tubes that failed, " The manufacturer did inform us that they had seen some tube failures from a batch of tubes made several years ago, but there is no way to determine whether any of the tubes we've sold were derived from that batch." So there was no way to know for sure other than go to a different tube.

PAPER: I had heard such good things about MEFO tires that I figured their tubes would be as equally good, so I wanted to match MEFO tubes with MEFO tires. And the MEFO tubes were advertised to be a thicker rubber / heavy duty.

ANYWAY, my intention was just to let everyone know that there are some bad tubes out there, not to bash MEFO in any way. I LOVE the MEFO tires.

Rick
La Vernia, TX
 

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PAPER: I had heard such good things about MEFO tires that I figured their tubes would be as equally good, so I wanted to match MEFO tubes with MEFO tires. And the MEFO tubes were advertised to be a thicker rubber / heavy duty.
Truthfully, I would have thought exactly as you did.. A friend ran Mefos a few times and they held up, had excellent wear, and were a darned good off road tire. I would have thought the tubes would be of similar quality..

I've never seen Mefo tubes, but if I had and needed a tube, I wouldn't have hesitated to buy them..

Good luck and thanks for the heads up!!:)
 

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Discussion Starter #7
The supplier and mfg swears the failures were limited to one batch of front tubes.

I ordered a set of IRC tubes today.

Rick Thompson, Tejano
La Vernia, TX
 
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