Heidenau Tires - Cracked

Twisties

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Alright, well this has been informative. I think it's safe to say, "they do that," now. So two questions: Anyone go look at theirs and find no cracks? Is this a safety issue?
 

Z06

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Twisties said:
Alright, well this has been informative. I think it's safe to say, "they do that," now. So two questions: Anyone go look at theirs and find no cracks? Is this a safety issue?
Don't know if it's a safety issue or not, but I think about those cuts/cracks some when I am running the hiway at 85 MPH for hours on end.
 

elizilla

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I think that how I *feel* about my tires has almost as much impact on their performance, as anything else about them. If I am afraid of my tires, I won't trust them, and if I don't trust the tires the bike will handle badly. Sure, the bad handling is because of the rider input, but frankly that's the hardest part of the package to get right. So I wouldn't run a tire that made me nervous, any longer than I had to. This is why I replace them earlier rather than later. Everything is better with peace of mind.

I'd replace 'em.
 

tomatocity

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elizilla said:
I think that how I *feel* about my tires has almost as much impact on their performance, as anything else about them. If I am afraid of my tires, I won't trust them, and if I don't trust the tires the bike will handle badly. Sure, the bad handling is because of the rider input, but frankly that's the hardest part of the package to get right. So I wouldn't run a tire that made me nervous, any longer than I had to. This is why I replace them earlier rather than later. Everything is better with peace of mind.

I'd replace 'em.
::026::
 

Combo

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Twisties said:
Alright, well this has been informative. I think it's safe to say, "they do that," now. So two questions: Anyone go look at theirs and find no cracks? Is this a safety issue?
I have only around 1700 miles on mine and no cracks. I run pressures in the K60 about what Jaxon does.

In the past I have developed cracks and chunking knobs/tread in other tires when running too low of pressure. It will also reduce tiretread life in a big way due to heat. It was mostly caused from running dirt with low pressure and then hopping back onto the slab without bumping up the pressure. :-[

It would be nice to know if it is an over or under pressure issue with this tire or not an issue at all? :-\
 

Twisties

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Combo said:
I have only around 1700 miles on mine and no cracks. I run pressures in the K60 about what Jaxon does.

In the past I have developed cracks and chunking knobs/tread in other tires when running too low of pressure. It will also reduce tiretread life in a big way due to heat. It was mostly caused from running dirt with low pressure and then hopping back onto the slab without bumping up the pressure. :-[

It would be nice to know if it is an over or under pressure issue with this tire or not an issue at all? :-\
I ran on dirt one day at 28 psi, unloaded, and did re-air before hitting the freeway, although there was some paved road, 50-60 mph in between dirt sections. So potentially mine could have been damaged then. However, I don't think 28 psi is too low for that. I also ran on dirt a few other days without airing down.
 

Firefight911

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Hogwash Jan. That was the day we went out and I've done that exact scenario more times than I can count with much more freeway at 25 psi than anything you did that day.

This is the front.


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Firefight911

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This is the rear.

6500 miles total mileage for front and rear on these and that includes my 50CC of 2428 miles done in 104 degree weather in 45 hours from San Diego to Jacksonville.

Ride more worry less. I would add that your suspension not being at its optimum sag setting and the resulting working action of the suspension is probably adding to the work your tire does but, seriously, I wouldn't worry about it. I've had tires do this in the past and they were fine.


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Firefight911

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I am getting new rubber tomorrow. I would not recommend doing a 50CC such as I did with them. I've got some horrendous squaring in the rear and the front feels like a buzzing truck from the all upright, high speed ride it took.

Once home in another 4000 miles I will be spooning another set on. For the balance of this trip it will be Anakee II.


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MikeBear

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Am I missing something? What the hell happened? Reply 26 and 27 you saying it is ok to ride with cracked tires and on 28 you are going to put another set... Maybe I'm reading it wrong...
 

Firefight911

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Yup, you're reading it wrong.

Replacing them as the wear is very uneven and causing handling issues. This is a direct result of my actions and riding during my 50CC and not a tire related issue.


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HoebSTer

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MikeBear said:
Am I missing something? What the hell happened? Reply 26 and 27 you saying it is ok to ride with cracked tires and on 28 you are going to put another set... Maybe I'm reading it wrong...
I just read Phils need to replace his tires as "squared off" and "sounding like a truck" the reason he is replacing them!!!
 

EricV

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I'm on my second set of K60s. Exclusively run at 36/42 psi. Sadly, mostly pavement and 'good' gravel, rather than real off road. No issues. 11, 585 from the first rear, nearly 20k from the front. Brand new front on now and the rear has a big over 6k on it and no cracks. My suspicion is that the cracks may simple be a normal result of off road flex/wear, rather than any issue to worry about. I had some stuff similar to what Jaxson's pics show after Death Valley off roading, but never any air loss, other than when I bent the wheel.

Much of my riding is LD type stuff. Aside from the bit of extra vibes at interstate speeds, I wouldn't hesitate to run K60s for anything. I'm seriously considering them for the IBR next year, just because they have proven to last well for me. And having the ability to go anywhere with confidence is a good thing.™
 

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FWIW one of my coworkers had a K60 front blow out on his R100GS while traveling 75-80 down the freeway. (He was running 34PSI I believe.) After that, he did some research and found that there has been some issues with these tires.
 

Kevhunts

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I urge everyone with these tires that have cracks to contact the manufacture. They may tell you it's perfectly normal or they may tell you there is a problem. If there is a problem, the hide you save may be your own!
 

dcstrom

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powerlet said:
FWIW one of my coworkers had a K60 front blow out on his R100GS while traveling 75-80 down the freeway. (He was running 34PSI I believe.) After that, he did some research and found that there has been some issues with these tires.
I've been reading about Heidenaus for a long time now, and using the rear for the last 10,000 miles - never heard of anything like that. I'm pretty certain the problem you mentioned is not much to do with the tires... two clues, "blow out" and "R100GS". A tubeless tire (as on the S10) is very unlikely to "blow out" (sudden deflation) and the R100GS has tubed tires, which WILL blow out if there is a problem with the tube. The tube seems more likely to be the problem this time around.

If it was the tire, I'd like to hear more details - it's not reasonable to conclude that there's a problem with K60 fronts based on this incident.
 

Don in Lodi

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EricV said:
I'm on my second set of K60s. Exclusively run at 36/42 psi. Sadly, mostly pavement and 'good' gravel, rather than real off road. No issues. 11, 585 from the first rear, nearly 20k from the front. Brand new front on now and the rear has a big over 6k on it and no cracks. My suspicion is that the cracks may simple be a normal result of off road flex/wear, rather than any issue to worry about. I had some stuff similar to what Jaxson's pics show after Death Valley off roading, but never any air loss, other than when I bent the wheel.

Much of my riding is LD type stuff. Aside from the bit of extra vibes at interstate speeds, I wouldn't hesitate to run K60s for anything. I'm seriously considering them for the IBR next year, just because they have proven to last well for me. And having the ability to go anywhere with confidence is a good thing.™
That's what I've thought on some of the images, stone impact/tears offroad. Did any of the photo posts mention what sort of riding had been done on that rubber? Back in the day, you shoulda seen what my XL600's Avon's looked like after a few weekends running around in the Sierra granite. You'da thought they were going to fall apart from the looks of them.
As noted, a pinched tube, catastrophic air loss, and the tire will shred before you can get to the shoulder of the road. "Blowout" gets way over used IMHO.
 

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Mine have all types of cuts and little chunks or rubber missing. I'm sure most if not all of that is due to the 1000++ miles of off road that I put these tires through. I now have a plug in the rear and ride them everyday. Still going strong. I'll prolly throw a new rear on in 3-4K miles. My front still looks new. Lol
 

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powerlet said:
FWIW one of my coworkers had a K60 front blow out on his R100GS while traveling 75-80 down the freeway. (He was running 34PSI I believe.) After that, he did some research and found that there has been some issues with these tires.

This description makes no sense to me. As DCStrom mentioned, the 100gs is a tube tire and tIres on tubed wheels seldom fail, let alone fail suddenly and catastrophically. As in the description "blow." The failures are almost always the tube or some type of external damage.


If not an external cause, running a tube in a tire increases heat, which is the bane of rubber products. Running low pressure or overload, especially as speed increases will increase the rate of heating and lead to premature failure of the tube. Of course, folks can't see the tube, they read the name of the tire.


Which is more typical.
 
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