Finally wore out my gp5000’s and tossed on a set of barely used Vittoria’s I had laying around. After getting everything mounted up I spun the wheels in the forks and noticed both had a pronounced “bump” section like the bead didn’t position correctly in the wheel.
Deflated them both and then bounced the wheels on my work bench to get the beads to settle better, both improved but not to my liking. Will they settle in with riding or is that a poor choice?


OK fixed and learned a lesson concerning tubeless tires that everyone else probably knows. I decided to try hitting the tires with high pressure air from my compressor and pop-pop-pop, the bead finished seating, wobble gone, smarter rider.

Deflate again and make sure tube is where it belongs. Add more air.

Did they seat previously? If you bought them 'slightly used' = inspect carefully the bead&casing at the bump/bulge.

Is the issue at the valve stem?

The tire should have a "witness line" just above the rim wall to show how it is seated. It should be the same distance from the rim all the way around the wheel, if not, the tire needs to be reseated. If the witness line gets further from the rim in one spot, the tire bead is not fully seated and could blow off the rim. If it dips below the rim edge, it's seated too deeply and should be repositioned. Deflate the tire and spray/dribble some soapy water onto the tire at the offending spot and partially re-inflate. Check that the witness line is uniform throughout the wheel circumference. If it is, fully inflate and enjoy. If not, deflate again and reposition the bead in that spot.

If rims are tubeless ready, you may need to pump up a bit higher PSI to snap bead into place.

I don't run tubeless but I bought some cheap foldable tires from amazon. I had the same problem...solution was to use a toothbrush with soap along the bead of the tire and if that doesn't work you need a tire set tool to properly seat the tire

So I picked up some of this stuff and it has worked wonders on "sticky" tires that won't just slide into place. I just run a bit along the rim or the tire bead and the tire just pops into place. Don't have to use it all the time, but when I find a tire that is being a little finicky, it's a blessing to have.

Shindy Tire Bead Wax

I use a bit of dish soap on the beads. Be careful not to stare at the bead as you air up the tires, getting dish soap sprayed into your eyes is no fun, ask me how I know.

At the bike shop I spray rubbing alcohol in the space between the bead and rim. Bingo!

You may also consider the dish soap trick as others had mentioned, inflate to partial pressure, and work them with your palm to seat them. If that doesn't work, inflate to full pressure and wait overnight. Sometimes that pressure over time will seat them.