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  1. #1
    Just smang it. EpicSchwinn's Avatar
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    Tire won't stay seated

    I bought a wheelset (eighth inch amelia's) that came with tires and tubes pre-installed. When I started pumping them up, I noticed the bead wouldn't stay seated. I know this is usually due to part of the tube being between the tire and the rim, but I checked all around and that isn't the case. It looks to me like the tire is actually stretched out or warped. Is there any way to get this to mount up evenly?

    Yes, I know these are dirt cheap tires, but I would at least like to get a few miles out of them.

    Pic of bulging section @60 psi (120 is recommended) Note the hash marks showing near the rim:

    Pic of normal section (60 psi):

  2. #2
    Subjectively Insane MilitantPotato's Avatar
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    The "normal" section seems too far into the rim, I'm guessing it's opposite of the "buldging" section.

    A little of the bead-seat showing isn't uncommon, deflate the tube, reposition the tire so that it's more-or-less even throughout, and inflate slowly.

    I put ~10psi in the tire, then tug on the sections too far into the rim so the bead gets seated, then continue pumping.

    I've had two different sets of tires that where made too wide, both blew off the rim at anything above 30psi. It took NO effort to mount the tires, and setting the wheel down without air in the tubes caused the tires to slide off, since the inside diameter of the tire was the same size, or only very slightly smaller than the rim.

    If indeed your tires are made over-sized, and they won't seat properly, don't ride them. Having a tire unmount while riding is NOT going to end well.
    Last edited by MilitantPotato; 02-28-11 at 08:05 PM.
    You've got a bike, so you gotta move.

  3. #3
    just pokin' along desertdork's Avatar
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    I don't see any bulging. What I do see is one section of tire that looks to be fully seated and another section that has yet to fully seat. I'd fully inflate the tire to get the bead seated against the hook throughout the rim's circumference. If there's still some variance, I'd deflate to low psi, work the tire a bit manually and then inflate again.

  4. #4
    Senior Member TLCFORBIKES's Avatar
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    I spray silicone along the tire bead where you notice the tire not seating properly. Then inflate the tire (to 120 or a little more). The tire should seat properly.

  5. #5
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    Quote Originally Posted by desertdork View Post
    I don't see any bulging. What I do see is one section of tire that looks to be fully seated and another section that has yet to fully seat. I'd fully inflate the tire to get the bead seated against the hook throughout the rim's circumference. If there's still some variance, I'd deflate to low psi, work the tire a bit manually and then inflate again.
    +1
    Try what desertdork says.

  6. #6
    Just smang it. EpicSchwinn's Avatar
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    Quote Originally Posted by MilitantPotato View Post
    The "normal" section seems too far into the rim, I'm guessing it's opposite of the "buldging" section.

    A little of the bead-seat showing isn't uncommon, deflate the tube, reposition the tire so that it's more-or-less even throughout, and inflate slowly.

    I put ~10psi in the tire, then tug on the sections too far into the rim so the bead gets seated, then continue pumping.

    I've had two different sets of tires that where made too wide, both blew off the rim at anything above 30psi. It took NO effort to mount the tires, and setting the wheel down without air in the tubes caused the tires to slide off, since the inside diameter of the tire was the same size, or only very slightly smaller than the rim.

    If indeed your tires are made over-sized, and they won't seat properly, don't ride them. Having a tire unmount while riding is NOT going to end well.
    Tried this along with a little lubricant along the bead. All went well! Thanks guys!

  7. #7
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    I had endless problems with those tires when I bought my set. The same thing would happen, except it would come completely unseated. It took me a solid 10 minutes to inflate it super slow and keep it even. Just get new tires.

  8. #8
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by TLCFORBIKES View Post
    I spray silicone along the tire bead where you notice the tire not seating properly. Then inflate the tire (to 120 or a little more). The tire should seat properly.
    No need to get all high-tech. Squirt a little dish detergent in some water and use a rag to spread it along the bead. Works like a champ!

  9. #9
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    Quote Originally Posted by JohnDThompson View Post
    No need to get all high-tech. Squirt a little dish detergent in some water and use a rag to spread it along the bead. Works like a champ!
    i keep an old dish soap bottle full of water and a few drops of soap handy. squirt it all over the rim, make a mess and inflate. works great.

  10. #10
    Senior Member TLCFORBIKES's Avatar
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    Quote Originally Posted by JohnDThompson View Post
    No need to get all high-tech. Squirt a little dish detergent in some water and use a rag to spread it along the bead. Works like a champ!
    Silicone spray isn't "high-tech" - just what I have at the shop. It cost $2.50 for a 24oz can (full retail price - not dealer cost). :-)
    It is very clean and will evaporate and is very fast/easy to use. Give it a try sometimes. The old soapy water trick will work but I usually do not have any at the store.

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