Uneven tread and tubeless problems?

TheJackal

Just fitted some new Syncros tyres that I've never used before and noticed that when I spin the wheel the tread seems to turn unevenly. The outer tread knobs, on one side, are definitely not parallel throughout the whole tyre.

Never had this problem before with Maxxis or Schwalbe.

How likely is it that the tread is actually uneven? Or is it possible that the bead isn't seated right? The other one seems OK.

Another thing is that having ridden the tyre once, it does stay up but does tend to lose air over a period of 3 days, if not topped up.

I use a ghetto tubeless set-up but have never had any problems before.

Maybe I should just over-inflate it, to make sure that all the tyre is seated in the rim?

coopsman1

Give it a good pump up to around 50psi and then submerse in your bath tub.

Obviously only put in enough to cover the side wall. that should help to identify any leaks.

TheJackal

Thanks Coopsman1.

Doean't really explain the uneven tread but I'll do this to see if there's any air coming out from elsewhere.

Dirtydog11

TheJackal wrote:

Thanks Coopsman1.

Doean't really explain the uneven tread but I'll do this to see if there's any air coming out from elsewhere.

The chances are the tyre bead is not seated properly. Check it is not pinched on the rim anywhere.

I've found the easiest way to get the bead to seat is to......... remove the wheel and stand on the pinched section of tyre then push the top of the rim away from you.

cavegiant

Hi,
I really hope you have not pumped to 50 psi, on some ghetto (most) that will stretch the bead and cause a blow out!

carefull, if kevlar bead, or a loose fit 40PSI may even be too much.

sheepsteeth

sounds like the bead isnt seated right, keep pumpng it up untill it seats correctly then reduce the pressure to the level you prefer.

cavegiant

I would say seat it by hand, pull the tyre into place, overinfflation has caused to many explosions for me. At least you spray the room with goo and scare the shit out of yourself, the worst I have had is a tear in the tyre, I have heard of wheels being damaged by overinflation blowing the bead (do not underestimate the force that is released whena bead goes.)

Shami Sniffer

I tried ghetto tubeless on narrow 717 rims. The 20” innertube had thicker rubber around the valve which went slightly up the rim walls. It was not possible to get the tyre to seat properly with this combination. I have got a successful tubeless setup now with just insulation tape and an old valve. Easy to change tyres.