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New tire seated crooked

Started by newbie1993, June 05, 2015, 05:46:03 PM

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newbie1993

 It was finally time to change my tire and I got through all the required steps just fine, until got to the time to actually fill the tire with air. I'm guessing the bead was seated everywhere else because the tire filled with air immediately.  But when I made sure everything had seated properly 2 sections were not seated (one on the left side and one on the right side.) The tire looks crooked in that area. What went wrong? Need help. Thanks in advance

gsJack

Need a little lube on the tire bead or rim to insure seating all around.  Break it loose again and lube it and inflate it again.  I use some liquid dish wash soap squarted on a rag to lube beads before mounting, with tire already on just wipe some all around down between tire and rim on the rim shoulder where the tire seats and reinflate.

Most all tires now have a raised line around them on both sides close to the rim that will be equally distant from the rim all around both sides if bead is seated properly.   
407,400 miles in 30 years for 13,580 miles/year average.  Started riding 7/21/84 and hung up helmet 8/31/14.

newbie1993

I used the ziptie method to mount the tire but my lubricant of choice was water resistant silicone wd40.  I think that's why no matter how much of dish liquid mix I used it wouldn't seat but. I also just noticed that the arrow on the tire wasn't over the air valve would that cause it?

bmf

What pressure did you go up to when seating the bead? Did you go high enough?
You think Pyrrhic victory is bad you should try Pyrrhic defeat!

newbie1993

I only went to 26psi because I noticed certain parts weren't seating

bmf

You need to go much higher to get it to seat I think mine seated around 40 or 50 PSI.

Its scary and I left the room while it went from 35 up but it seated right in.

Google to see what folks recommend as the max high pressure.
You think Pyrrhic victory is bad you should try Pyrrhic defeat!

gsJack

That sounds about right bmf, back a few years when I quit mounting my own the local gas stations were all limiting the pressure of their free air pumps to 40 psi for safety/liability reasons.  40 psi got most of them but a few needed 10-20 psi more to pop in place.  If you don't have your own compressor you can get 40 psi at the gas station and then use one of those plug in the lighter socket little air pumps that are very lacking in volume but can give 60-70 psi to finish it off if needed.  Use plenty of lube.  And check those lines to confirm they are seated all around both sides.
407,400 miles in 30 years for 13,580 miles/year average.  Started riding 7/21/84 and hung up helmet 8/31/14.

Big Rich

The arrow is just a direction indicator - on some tires there is a circle that should be near the valve stem to help balancing.

Jack is correct: deflate and put some dish soap or whatever around the "low" area of the bead. Then fill up the tire a couple PSI at a time to see if the bead seats properly (checking the line that Jack mentioned). I can't say what the max PSI to seat the bead would be - the tire manufacturer would have the proper answer. But if a tire can handle higher psi at warm up temps under riding conditions, slightly higher psi under cold conditions to seat a bead wouldn't really hurt anything.

Of course: YMMV

Edit: still posting after Jack.
83 GR650 (riding / rolling project)

It's opener there in the wide open air...

newbie1993

Bridgestone says 57 psi is the max inflation pressure that you should never exceed but I'm sure it will seat before that. I forgot my soapy water mix at home last time, I'll be sure to bring it next time.

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