I have converted my 2 year old conti rear tire with enough life in it to tubeless this spring. I'm using Stan's sealant (120ml) vittoria insert, new rim tape and have followed instructions on YouTube on how to seat the tire and distribute the sealant. However on the first ride out my tire was getting flat. I had to pump it three times on the 50km ride.
When I got back home, I sprayed some dish soap on it and this is the result. Is this tire done for or should I try to use a different sealant?
by ramirezz
16 Comments
If your goal is to mount a tire that holds air then that’s a fail.
What’s your question again?
That seems strange if you actually added sealant correctly. It should take care of those tiny leaks.
Did you follow the instructions and use enough for the tire size?
Do you have a death wish for all porcupines?
😃 time to install an inner tube
I looked up your tires and they are tubeless compatible, but I am not sure of the model of your wheels, they might not be. Since it is leaking all around the rim, I assume that the tire is unable to create the proper seal on the rim/sidewall. Generally, the wheel needs to be properly designed for that. I would research my rim to ensure that it is tubeless compatible. If it is, my next step would to be to simply feed it more sealant.
Pinholes should seal. Either your sealant isn’t hardening or there’s not enough.
Edit: I’m also not convinced that’s actually beaded
I don’t think those tires are rated for tubeless. Are they?
Remove wheel and lay flat over a trash can so sealant can get to sidewalls. Leave for 20 minutes, then flip and repeat. Then see what happens. It should solve your problem.
Oh, did you shake the sealant before adding it?
Take the wheel of and shake the wheel on it’s side.
It might be that after 2 years that trail casing is not suitable for tubeless anymore regardless of how much threads are left. Never had problems with stans and contis that i run are more than 2 y old but then again they are dh casing with much thicker sidewall rubber and bead to prevent leaks even if rubber itself gets dry and porous
Drain out all the sealant that’s liquid. Throw a tpu tube inside and ride it till there’s not enough grip for your terrain.
I would trash it
Rotate the tire horizontally to spread sealant around the bead
Even if you get a good seal, your sidewalls are probably shot. Your next tire needs a stronger casing.
I’ve always found Continental tires to have porous side walls, sealant should fix it. Air it up and ride it around for a little while. The sealant needs to get to those holes in order to seal them. It won’t seal them just sting there.