You are hereForums / By Discipline / Mountain (off road) / MTB Gear / Tubeless Tyres

Tubeless Tyres


donkerr's picture

By donkerr - Posted on 01 October 2014

Being new to tubeless - what brings about a slow leak in a tyre? I've had the wheels for about 10 months and had to top up the air every few weeks. Now it's 20% flat after a couple of days. They are carbon rims so I don't think you can dent them - is it possibly a smallish hole in the tyre or more likely rims? Any thoughts would be appreciated.

Tags
Bikes's picture

Are you using sealant? If so, have you topped it up at all? It may have dried up and not be sealing like it used to. Might be worth checking the state of it and adding more.
Cheers,
Caleb.

StanTheMan's picture

Its a little odd

In the past my tyres used to leak a little, just like Don's appaer to be. But this last lot has been rock solid. I don't know what I did differently with the sealant. but there is virtually no leak.

Jonathan's picture

A slow leak is pretty normal for tubeless, mine also leak a bit over time

Are you sure your using enough sealant? It might be worth putting more sealant in and cleaning the little seat where the tyre meets the rim and seals everything.

Are the rims and tyres tubeless compatible?

When you installed the tubeless stuff when you put your sealent in and mounted the tire did you spin the wheel a couple of times to spread the sealant?

Jono.

rossco_'s picture

Agree everyone mentioned above.

I had similar situation. Finally I realized I did not tight the core in the vale enough. Once tightened, all good. But don't be too tight as well;>

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Best Mountain Bike