splat Posted January 17, 2009 Share Has anyone had probelms with Kenda UST tyres and sealant? This is on their website and on the plastic tyre hanger thingie in the shop: ATTENTION KENDA VALUED CUSTOMERS KENDA DOES NOT ENDORSE THE USE OF ANY FLUID BASED SEALANT PRODUCTS IN KENDA TUBE TYPE OR TUBELESS TYPE TIRES. USE OF ANY FLUID BASED PRODUCT IN KENDA TIRES WILL BE AT YOUR OWN RISK AND WILL VOID ANY WARRANTY CLAIMS. Link to comment Share on other sites More sharing options...
ChrisH Posted January 17, 2009 Share I've been using Kenda Nevegals with Stans fluid for more than 2 years and I have never had an issue. Without Stans (or similar) in the tyre the tubeless system is a complete waste of time. I suspect that the warning is in case an American falls off his bike, breaks a finger nail, and tries to sue Kenda. Link to comment Share on other sites More sharing options...
bustthesickness Posted January 18, 2009 Share true ChrisH. Stans will work for any tyre. I cant understand why someone would run a tubeless tyre without sealant??? Link to comment Share on other sites More sharing options...
calabash Posted January 18, 2009 Share I agree. Have had no problems with Kenda and sealant. I don't use stan's anymore, now use a cheaper, latex-based truck tyre sealant. Link to comment Share on other sites More sharing options...
bustthesickness Posted January 18, 2009 Share I agree. Have had no problems with Kenda and sealant. I don't use stan's anymore' date=' now use a cheaper, latex-based truck tyre sealant.[/quote']hmmm, where, which, how much?sounds good. Stans is a ripp Link to comment Share on other sites More sharing options...
Iwan Kemp Posted January 18, 2009 Share Same here. Plenty of happy k's on Kendas with sealant. Link to comment Share on other sites More sharing options...
Dirtbreath Posted January 19, 2009 Share There have been rumours in tyre circles about ammonia in the sealants causing bubbling of the outer tread. Unsubstantiated but these guys want to cover their arses. Maxxis is another one. Problem is not with the sealant but tyre. They are still to put the warning on their tyres. Link to comment Share on other sites More sharing options...
RacerX Posted January 19, 2009 Share I use Nevegal 2.1s with Stans on my training wheelset and have had issues with two rear tires - in both cases the tyre seems to delaminate internally somehow and the sealant gets between the layers, causing bubbles (little balloons) on the surface of the tyre. The first time this happened, the tyre was pretty worn anyway, so I replaced it. I'm now riding the second tyre with a tube. After putting the tube in, it still made bubbles for a while that would pop every now and then during a ride - kinda cool. But the tyre holds the tube well and still seems sound and I've had no further problems. I've had no issues with the front tire that has now seen more than two years of (ab)use. Perhaps the rear tire delaminates because of the continuous pedalling torque. By the way, be sure not to use tyres that old Stan says should not be used - see http://www.notubes.com/support_tire.php. I've read some horror stories about these tyres popping off the rim after the bead breaks.RacerX2009-01-19 06:25:22 Link to comment Share on other sites More sharing options...
Iwan Kemp Posted February 6, 2009 Share Go have a look at this:www.twowheelstrading.co.za or http://www.twowheelstrading.co.za/pdfs/Kenda_Tire_Test_Report.pdf Link to comment Share on other sites More sharing options...
Kranswurm Posted February 6, 2009 Share I had a rear Nevegal come apart with Joes.A section of about 20cm was like a sponge and pissing sealantI now use 50/50 Joes and OKOSeems alright Link to comment Share on other sites More sharing options...
sss000sss Posted February 7, 2009 Share I'm running Kenda SmallBlock 8's (UST) for 18 months now with Stans, no problem so far. Link to comment Share on other sites More sharing options...
Johan Bornman Posted February 8, 2009 Share I agree. Have had no problems with Kenda and sealant. I don't use stan's anymore' date=' now use a cheaper, latex-based truck tyre sealant.[/quote'] Stan's is also latex-based. I point this out just so that there's no connection made as to an incompatibility with latex and the rubber used in tyres. Which particular sealant do you use? I'm curious, especially with respect to the preservative and dilutant they use. Link to comment Share on other sites More sharing options...
Johan Bornman Posted February 8, 2009 Share The more I read reports of tyres delaminating and forming bubbles, the more I am convinced it is caused not by a chemical reaction but by a mechanical fault with the tyre. My theory is that this only happens with tyres that have punctured. The air then gets into the layers of the tyre via the puncture hole and does its damage inside there, helped on my the massaging of the tyre as you ride.I predict that one of the tyre manufacturers will one day realise this, invent a way of preventing it and market their tyre as sealant proof and delaminantion proof. Link to comment Share on other sites More sharing options...
Dirtbreath Posted February 8, 2009 Share Johan, a certain tyre manufacturer moved their production from the US to the East. This move coincided with a spate of problems such as mentioned here. I believe the new compound was much harder giving better wear on the tyre but resulted in delaminating and problems. Can harder rubber compounds lead to poorer bonding between layers? Link to comment Share on other sites More sharing options...
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