I have just bought some 45mm Pirelli Cinturato M for my Checkpoint SL5 Gen 2. I'm still on the rims that came with the bike, which have a 21mm internal width. As you can see in the picture, the black part of the tire is not showing all the way in one part of the rim, and it does in another. Is this normal? It feels wrong. Should I try to reset the tire?
by No_Shelter_4217
10 Comments
Pump it up higher, should pop on completely. Just don’t go to much above the max psi
Kibd of obvious but yes. When your tire is not seated properly its good idea to reseat it properly.
Not seated. I’d pop it out and try again. Try some soapy water on the beads and see if it helps. Worst case scenario put a tube in and inflate it to fully seat the beads then take one side out.
Add some sort of lube around the rim (!) and it’ll probably go on.
Soapy water works wonders
Soapy water on the bead. Max psi. You can exceed it a bit just don’t ride it like that.
Those rims likely have the snap in plastic tubeless bead strip, they are notoriously hard to seat.
Very common. I would just leave it inflated as is, and mostly likely it will pop out into place if you leave it for a day or so, or possibly overnight. If not, the first time you ride it, the added pressure from your weight will most likely pop it out. No biggie.
Sometimes if you bounce the wheel on the ground a bit, it’ll snap into place.
As other people said, soap on the bead. I’ve also had success leaving it out in the sun, when it warms up it expands slightly and sometimes it’s enough to get it to pop into place.
Does it move laterally when you spin the wheel? If so, you can fix it very easily just by deflating it nearly completely (on the bike if you wish), then mix water with some soap. Walk your finger around and push the bead inward, and put the soapy water between tire bead and rim wall. Do this both sides, the pump it back up, watching that black line. You may need to overpressure a bit to overcome the friction, which increases a great deal as the pressure builds. You may hear pretty loud pops as the tire slips up onto the rim ‘shoulder’! If you get way higher than the max pressure you may just need to add more soap, do that rather than going too high on the pressure!!