Tubeless Tyres

[SkinnyPete]

Well, these are fun...

Picked up a new bike with tubeless tyres and immediately noticed they were losing air. Not just a bit either - enough that I'm pumping them up every day.

No big deal, as I was planning to swap the tyres anyway. Fitting them was more difficult than with tubes, but the rim tape looked tidy and there was plenty of sealant inside.

New tyres are now on...and I'm still losing around 10psi a day from both the front and rear.

Have I missed something obvious, or is there another likely culprit?

[Correvor]

If the rim tape looks good, check the valves are tight and well seated.

That aside, new tyres can be a bit porous but if it continues after a few rides, add more sealant.

On the plus side, I had my first tubeless winter just gone. When I took the tyres off I found 4 blobs inside showing holes which I was oblivious too because of the mudguards and sealant quickly sorting them.

[SkinnyPete]

I did try to remove the valves, but they were done up so tight I couldn't shift them by hand. No doubt that'll come back to haunt me the first time I get a puncture mid-ride and need to throw an inner tube in...

[benny.c]

Did you do the sealant dance when you fitted the new tyres, or go out for a ride? Both can help plug all the small gaps, as can over inflating the tyres a little - apologies if you are already experienced with setting up tubeless and you already know this.

Edited by benny.c on Monday 6th July 21:34