Maxxis Ignitor + Stan's sealant + time = blisters- Mtbr.com
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  1. #1
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    Maxxis Ignitor + Stan's sealant + time = blisters

    I've had a standard 29"x2.1" Ignitor on the front of my 69er for a pretty long time (18 months, plz don't laugh!) running tubeless with Stan's sealant in it. I just noticed yesterday that it has some big-a$$ed blisters that formed in between the casing and the tread layer. They're about the size of a dime and are bulging above the height of the knobs. I didn't count, but there's at least 6 of them. I have been planning to replace that tire for a long time but couldn't find anything I liked in an LBS (which is a constant frustration with my LBS's BTW).

    The reason I even noticed the blisters was that I was prepping for a race and was going to add more Stan's [to make even bigger blisters ]. I ended up not going to the race though... too freaking tired this week and it was VERY far away (6hr drive).

    I ordered new tires today and can't wait to pop those Stan's filled tire zits once I get the new ones !
    I read that on the internet.

  2. #2
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    Quote Originally Posted by 40hills
    I've had a standard 29"x2.1" Ignitor on the front of my 69er for a pretty long time (18 months, plz don't laugh!) running tubeless with Stan's sealant in it. I just noticed yesterday that it has some big-a$$ed blisters that formed in between the casing and the tread layer. They're about the size of a dime and are bulging above the height of the knobs. I didn't count, but there's at least 6 of them. I have been planning to replace that tire for a long time but couldn't find anything I liked in an LBS (which is a constant frustration with my LBS's BTW).

    The reason I even noticed the blisters was that I was prepping for a race and was going to add more Stan's [to make even bigger blisters ]. I ended up not going to the race though... too freaking tired this week and it was VERY far away (6hr drive).

    I ordered new tires today and can't wait to pop those Stan's filled tire zits once I get the new ones !
    Rich,
    I had an Ignitor do that too. I am just waiting for the day that my CrossMark blisters up. Could be any day now. I plan to replace with a Spec. Captain or Racing Ralph. I have heard very good things about both of them.

  3. #3
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    Same thing happened to my ignitors. I was using TruGoo sealant, it has just happened to one of my UST Kenda Karmas. So I'm wondering if I just run the UST tires without Sealant will this not happen? Do people run UST tires dry , without sealant?
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  4. #4
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    Quote Originally Posted by dickeydoo
    Same thing happened to my ignitors. I was using TruGoo sealant, it has just happened to one of my UST Kenda Karmas. So I'm wondering if I just run the UST tires without Sealant will this not happen? Do people run UST tires dry , without sealant?
    Yes, a "true" UST tire (not just "tubeless ready" or some variation of that) can be ridden dry without sealant. They have a thick enough butyl layer for that. While they hold up pretty well to punctures, IMHO they are not as good at stopping leaks as a tire with sealant.
    I read that on the internet.

  5. #5
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    well this is a bummer. i was gonna convert my ignitors this summer. i guess not.

  6. #6
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    Quote Originally Posted by b-kul
    well this is a bummer. i was gonna convert my ignitors this summer. i guess not.
    It took a very long time for mine to blister. If you think you'll use up the tread in say 6 months or so, then I figure it would be ok to convert them.

    That said, I'm replacing that tire with one of the tubeless read Bontrager tires because I like the way they mount and hold air reliably from the get-go.
    I read that on the internet.

  7. #7
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    I read in another thread that had pictures of the lumps or ''blisters'' that they are not caused by the sealant. They are caused by the casing separating like pinch flats when the rim bottoms out.. It's caused by running too low air pressure. How low do you run your tires? Do you ever feel the rim bottoming out?

    I run my tires 19 front/ 24 rear and I never feel them bottom out unless I go lower.
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  8. #8
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    tires zit photo

    I finally am posting up a pic... I popped the tire zits and they were actually filled with air, but the casing underneath was wet. The blisters went pretty much all the way around the tire every couple of inches or more.

    Maxxis Ignitor + Stan's sealant + time = blisters-ignitor.jpg

    FWIW, I replaced it with a tubeless ready Bonty which was so easy to inflate with nothing but a floor pump that I may not ever go back to running standard tires without tubes. It's really nice not having to mess with a compressor.
    I read that on the internet.

  9. #9
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    Ran an Ignitor tubeless w/Stan's on the rear of my 29er for several years, never had a blister.
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  10. #10
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    Anyone with tread separation (i.e. "blisters) on Maxxis tires should feel free to contact Maxxis for a possible warranty replacement: http://www.maxxis.com/About-Maxxis/Contact-Us.aspx
    Tire Design & Development Engineer. The opinions expressed in this forum are solely my own.

  11. #11
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    Quote Originally Posted by b-kul
    well this is a bummer. i was gonna convert my ignitors this summer. i guess not.
    Use CaffeLatex instead of Stan's sealant. From what I understand, it's the ammonia in Stans that causes most of the problems associated with their sealant, and CaffeLatex doesn't have ammonia in it.

  12. #12
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    Quote Originally Posted by bholwell
    Anyone with tread separation (i.e. "blisters) on Maxxis tires should feel free to contact Maxxis for a possible warranty replacement: http://www.maxxis.com/About-Maxxis/Contact-Us.aspx
    So, Maxxis will warranty blistered tires caused by sealant? I thought that they wouldn't. I had an Ignitor blister on me within a couple of days (w/ Stan's sealant). It was a LUST tire too. Doesn't matter now, because I already threw away the tire. Just curious for future reference.
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  13. #13
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    Quote Originally Posted by have2ride2day
    So, Maxxis will warranty blistered tires caused by sealant?
    Officially, the use of sealants voids the warranty. Currently, however, Maxxis USA is honoring warranties on UST tires that have been used with sealant. That may change in the future, though.
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  14. #14
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    happened to me too!

    Heres a pic of my Ignitor after a BrianHead run...


  15. #15
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    Wow, that's a good one!
    I read that on the internet.

  16. #16
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    I've converted many tires with stan's goo on several of my bikes for a couple years now. I've converted maxxis high roller and mobster super tacky tires on the downhill and freeride bikes, I've never had an issue. I just converted my two 29ers with ignitors a month ago, I'll keep my eye on them.

  17. #17
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    I rode a set of 29x2.1 Ignitors w/Stans for a few seasons w/o any issues. I studded them this winter and they are still going strong (with tubes). Just put Ignitors on another bike and expect to have another good experience.

    I know quite a few people that run Ignitors w/Stans and all of them have had good experiences -- FWIW...

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  18. #18
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    Is there any distortion of the casing around those bulges? That would be broken threads in the casing rather than sealant dissolving the rubber.
    This isn't a "you're doing it wrong" topic.

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  19. #19
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    Quote Originally Posted by wadester
    Is there any distortion of the casing around those bulges? That would be broken threads in the casing rather than sealant dissolving the rubber.
    according to stan himself there is no ammonia in his sealant.............

    the ammonia issue has likely been completely overblown and distorted............one thought is don't use windex to lubricate the bead before sealing, as it usualy has ammonia to prevent streaking.........just use soap like stans says in his videos........

  20. #20
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    2 years. No blisters

    Maxxis Igniter Exception 1.9. Two years on my rear wheels for two different bikes. They are a really great fast rolling, long lasting rear training tire that holds up well to some canal trail and road miles. Tubless with Stan's and no blisters.Finally wore one out in the center. Still riding the other even though it's best climbing days are gone. Not the greatest wet climbing traction for racing but very durable and high mileage.No flats. No blisters.

  21. #21
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    I've had 2 do it.

    Love the tires though.....won't run anything else.

  22. #22
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    That used to happen to Specialized S-Works The Captains, VERY consistently and predictably. It never caused a failure on the trail for me, so it wasn't a problem. And since Specialized would warrant the defective tires, I would end up with free new tires. Sadly, Specialized fixed the defect and I now have to buy tires again.

    If enough of their customers squeeze Maxxis for warranty replacements, they might improve their quality control.

  23. #23
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    Quote Originally Posted by bholwell
    Officially, the use of sealants voids the warranty. Currently, however, Maxxis USA is honoring warranties on UST tires that have been used with sealant. That may change in the future, though.

    Thanks for contributing to the thread.

    If Maxxis (or any other manufacturer) doesn't want us to use sealant in their tires then what are we to do?
    Run them dry? That kinda negates one of the main purposes of tubeless IMO.
    If I get a thorn on a 4-5 hour ride and the tire starts to go flat, what am I supposed to do? If I patch the tire theres no way I can inflate it w/ a pump.
    I've tried running tubes in them but seem to pinch flat them - I think - due to the channels in the UST rims.

    Please advise.

    Thanks

  24. #24
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    Quote Originally Posted by gsomtb
    Thanks for contributing to the thread.

    If Maxxis (or any other manufacturer) doesn't want us to use sealant in their tires then what are we to do?
    Run them dry? That kinda negates one of the main purposes of tubeless IMO.
    If I get a thorn on a 4-5 hour ride and the tire starts to go flat, what am I supposed to do? If I patch the tire theres no way I can inflate it w/ a pump.
    I've tried running tubes in them but seem to pinch flat them - I think - due to the channels in the UST rims.

    Please advise.

    Thanks
    IME if you leave a thorn in a UST tire (dry), it can hold pressure long enough for a day long ride. Might have to add air once, but no need to fix it on the trail.

    If you do have a flat on the trail, remove the object and put in a tube.

    "Channels" in UST rims have no affect on pinch flat propensity. If you are getting pinch flats with tubes in your UST tires, the pressure is too low, and using the same pressure without tubes you are risking damaging the tire casing, which could lead to tread blisters.
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    Quote Originally Posted by shiggy
    IME if you leave a thorn in a UST tire (dry), it can hold pressure long enough for a day long ride. Might have to add air once, but no need to fix it on the trail.

    If you do have a flat on the trail, remove the object and put in a tube.

    "Channels" in UST rims have no affect on pinch flat propensity. If you are getting pinch flats with tubes in your UST tires, the pressure is too low, and using the same pressure without tubes you are risking damaging the tire casing, which could lead to tread blisters.

    I have yet to find thorns in my tire but get home and after an hour or so see wet spots from the sealant doing its thing.......so the problem remains: not running sealant in a tubless tire is kinda silly.

    Tubes do not work in Crossmax SLRs....I've tried 1/2 dozen times and flatted
    EVERY time. It's not a pressure thing b/c I'm using plenty.

    Really though, I'd like to hear an answer from the Maxxis employee.

  26. #26
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    Quote Originally Posted by gsomtb
    Tubes do not work in Crossmax SLRs....I've tried 1/2 dozen times and flatted EVERY time. It's not a pressure thing b/c I'm using plenty.
    Barring obvious sharp edges inside the rim, I suspect installation error.
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    Quote Originally Posted by shiggy
    Barring obvious sharp edges inside the rim, I suspect installation error.
    Such as?

  28. #28
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    Quote Originally Posted by gsomtb
    I have yet to find thorns in my tire but get home and after an hour or so see wet spots from the sealant doing its thing.......so the problem remains: not running sealant in a tubless tire is kinda silly.

    Tubes do not work in Crossmax SLRs....I've tried 1/2 dozen times and flatted
    EVERY time. It's not a pressure thing b/c I'm using plenty.I have used tubes in Xmax SLR never had a problem

    Really though, I'd like to hear an answer from the Maxxis employee.

    On the other hand I run tubeless with sealant.....I have had a Panaracer blister and a Nevegal, but never a Maxxis.

    I have run tubless without sealant, UST's only.... 2Bliss, and LUST have required sealant from the get go....

    In the end I prefer to run a lighter (non UST front) with medium amount of sealant, and a UST rear with a minimal amount of sealant.

  29. #29
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    We realize that many people would like to run sealant in their UST tires, however we are unable to test ever sealant on the market to ensure that it is compatible with our tires.

    We are, however, still honoring warranty claims for UST tires that have been used with sealant.

    Also, there should be no problems installing tubes inside a UST tire, rim combo. I'm not sure what the problem may be.
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  30. #30
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    bholwell:
    I'm really glad you're on here and that Maxxis is honoring the warranty.

    Is there a particular sealant that you would recommend that could decrease the likelihood of blistering?
    I'm not asking for a gaurentee, just a recommendation of what you have seen/heard works.

    Please PM me if you feel more comfortable.

    Jeffscott:
    What size tube have you used?

    I could be overthinking it but:
    I have been thinking my probs were due to rim width:
    The rim is narrow to begin with....then there are the UST "channels" in the rim that narrows the area where the tube will contact the rim (it's about 3/8 of an inch). Any deflection of the tire sideways would easily pinch the tube against the other side.
    I dunno.......

  31. #31
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    What is the current state of affairs with Maxxis tires and sealant caused blisters ?

    Both of my tires, Maxxis Ignitors (LUST), blistered badly w/i 6 months of mounting them with a shot of tubeless Slime. This was almost 1 1/2 years ago, but I couldn't afford to replace them last year after being out of work for 9 months.

    I did get my moneys worth out of them, but they are now completely bald, and I've working for the past 5 months, so can afford a new pair. I will only run a true UST tubeless, and in my riding conditions, I have to also use a sealent.

    I believe there was a discussion about 1 1/2 yrs ago, that Maxxis was looking into changing the materials in the casing in hopes of stopping the blistering.

    I'd like to stay with the Ignitors, if possible.

  32. #32
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    Quote Originally Posted by onbelaydave
    What is the current state of affairs with Maxxis tires and sealant caused blisters ?

    Both of my tires, Maxxis Ignitors (LUST), blistered badly w/i 6 months of mounting them with a shot of tubeless Slime. This was almost 1 1/2 years ago, but I couldn't afford to replace them last year after being out of work for 9 months.

    I did get my moneys worth out of them, but they are now completely bald, and I've working for the past 5 months, so can afford a new pair. I will only run a true UST tubeless, and in my riding conditions, I have to also use a sealent.

    I believe there was a discussion about 1 1/2 yrs ago, that Maxxis was looking into changing the materials in the casing in hopes of stopping the blistering.

    I'd like to stay with the Ignitors, if possible.
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  33. #33
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    Quote Originally Posted by onbelaydave
    What is the current state of affairs with Maxxis tires and sealant caused blisters ?

    Both of my tires, Maxxis Ignitors (LUST), blistered badly w/i 6 months of mounting them with a shot of tubeless Slime. This was almost 1 1/2 years ago, but I couldn't afford to replace them last year after being out of work for 9 months.

    I did get my moneys worth out of them, but they are now completely bald, and I've working for the past 5 months, so can afford a new pair. I will only run a true UST tubeless, and in my riding conditions, I have to also use a sealent.

    I believe there was a discussion about 1 1/2 yrs ago, that Maxxis was looking into changing the materials in the casing in hopes of stopping the blistering.

    I'd like to stay with the Ignitors, if possible.
    I ran an Ignitor (non-tubeless version, but run tubeless with Stan's) on the rear of my Karate Monkey for several years without an issue.
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  34. #34
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    I've had 2 of my UST Lust Ignitors blister and bubble badly and one of the bubbles was freaking HUGE. Bigger than the one in that above pic. Really funny to see actually. I use True Goo sealant and another Ignitor UST Lust is still working ok at this time. I run 30psi F/B

    FWIW the True Goo doesn't seem to form the booger balls over time.

    I really like the tires but a local shop is getting over $80 for a similar replacement (seems like price gouging to me) so it would be fantastic if I could get Maxxis to warranty these tires.
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  35. #35
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    Quote Originally Posted by skidad
    I really like the tires but a local shop is getting over $80 for a similar replacement (seems like price gouging to me) so it would be fantastic if I could get Maxxis to warranty these tires.
    You should be able to return your tires to the point of purchase for warranty replacements. If your shop won't work with you, please send us a message via the contact submission form on our website. We'll take care of you.

    http://www.maxxis.com/About-Maxxis/Contact-Us.aspx
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  36. #36
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    The only Maxxis tires approved to be used with sealant are the new SCT (sealant compatible tires) models. I believe they were just released this year. Check on their website.
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  37. #37
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    Quote Originally Posted by Veda
    The only Maxxis tires approved to be used with sealant are the new SCT (sealant compatible tires) models. I believe they were just released this year. Check on their website.
    That's Kenda
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  38. #38
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    Quote Originally Posted by bholwell
    That's Kenda
    Sorry, right that's Kenda. I guess with Maxxis you're out of luck with manufacturer's approved sealant compatible tires.
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  39. #39
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    Just noticed that the Ignitor 26x2.1 UST on one of my bikes has blisters. This is installed on my FS bike that I don't use as often since I bought a 29HT. Last ride was about a month ago and didn't notice anything. I counted at least 12 with these pictures showing the largest.
    Attached Thumbnails Attached Thumbnails Maxxis Ignitor + Stan's sealant + time = blisters-p1030958.jpg  

    Maxxis Ignitor + Stan's sealant + time = blisters-p1030959.jpg  

    Maxxis Ignitor + Stan's sealant + time = blisters-p1030960.jpg  

    Maxxis Ignitor + Stan's sealant + time = blisters-p1030961.jpg  

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  40. #40
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    If the Lust tires work dry without sealant on UST rims, what is the purpose of sealant?

  41. #41
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    To seal any punctures that might occur.
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  42. #42
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    Quote Originally Posted by jdinsj View Post
    Just noticed that the Ignitor 26x2.1 UST on one of my bikes has blisters. This is installed on my FS bike that I don't use as often since I bought a 29HT. Last ride was about a month ago and didn't notice anything. I counted at least 12 with these pictures showing the largest.
    If your point-of-sale is not willing to work with you on warranty, we'll take care of you. Please call the warranty dept. at 866-509-7067
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  43. #43
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    Quote Originally Posted by bholwell View Post
    If your point-of-sale is not willing to work with you on warranty, we'll take care of you. Please call the warranty dept. at 866-509-7067
    Actually didn't purchase the tire, got it from the merchandise table at a race, so I will be contacting the warranty department. Thanks.
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  44. #44
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    Is anyone able to beat this one?

    No fault of the tyre. It was 4 years old and had Stans put in it a few times over that period.




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  45. #45
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    Quote Originally Posted by [email protected] View Post

    Now that's a serious bubble.
    Get it unlocked.

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