1st tire probem

NoCoGreg wrote:Advcyclist: Thanks for the excellent post and pic's!

Any thoughts on how sealants perform and/or last if the tire is filled with CO2 instead of air from a pump?  

In another post I described a similar flat which wouldn't seal.  Like ZMan it was a Raleigh Roker (coincidence) but I too was using the Orange Seal Endurance.  The bottle was fresh and there was ample OSE, but alas the rock cut was too big to be sealed.  I was able to get to an aid station where I got a tire plug:
https://www.genuineinnovations.com/blogs/learn-about-our-tech/how-to-plug-a-tubeless-tire

It took two pieces of "bacon strip" to fill the hole enough for the remaining OSE to finally seal the tire.  The plug and OSE held for over 17 miles now. While the tire is holding air just fine it's fairly worn and I'm planning to replace it with something more heavy duty.

Once I use up the last of my OSE I'll definitely be switching back to the original OS formula.  

Cheers,
Greg

I have never had good, long term, results from CO2 w/ tubeless. CO2 is great for that burst of pressure that might be needed to seat a bead if it separated after airing down (BTDT), but I'm not convinced that the super cold temps of the CO2 and liquid sealants is a good mix. Also, the burst of pressure to a tubeless tire/sealant application is likely to blow out the latex patch from the offending hole if the pressure cannot be regulated from the cartridge.

I carry CO2 all the time on all bikes, but I also carry a Lezyne HV handpump that resides at the water bottle cage on the down tube of every bike. FWIW, the pumps have saved my ass way more than the CO2 and the Lezyne pumps can be serviced/rebuilt. 2016 DK200 put me through several hours of pump, ride, slow leak-down, and repeat between the first and second towns. Had I relied on CO2 only, I'd have been SOL after the 2nd time it aired down. Once I made it to the stopping town, I swapped out wheels and all was good.

It turned out that I had completely torn the fiber bead out of the tire when I hit a partially exposed concrete drain pipe at the bottom of a long and fast descent. Where I thought it had just pinch-flatted through the sidewall or tread; the bead was fully compromised on both rim and tire, and nothing would have sealed it short of having a new wheel at that moment.

The extent of damage after I returned home and removed the tire...

   

I know this is my answer to every tubeless issue (almost) but skinny strippers would have held air (since the tire is roughly a "tubular tire").  That and I would rather use it than gorilla tape (although in your case you would also need some kind of rim tape).
I'll shut up now.  ;-) http://fattystripper.com/index.html

Well I am big time disappointed with Orange Seal. The Orange Seal I was promised must be on a slow boat from China as it hasn't shown up at my end yet. That was 13 days ago.

Zman

chas wrote:I know this is my answer to every tubeless issue (almost) but skinny strippers would have held air (since the tire is roughly a "tubular tire").  That and I would rather use it than gorilla tape (although in your case you would also need some kind of rim tape).
I'll shut up now.  ;-) http://fattystripper.com/index.html

Interesting product... I'll have to look more into it after DK. Not gonna change the setup this close to Go time...