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Old 08-21-2013, 10:45 AM   #1
mroddis OP
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Location: Wet Coast of Canada
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Non-popping Scorpion

I tried searching a few pages but couldn't find an answer, so here goes....

I remember reading somewhere that your front tire bead doesn't always POP when reinflating. I just swapped over to a set of Scorpions, and inflated the front tire to around 34psi, but didn't hear a POP. (The rear made 2 big pops at about 32 psi). So I decided to bounce the tire about a dozen times to set the bead, but still didn't hear anything...

Question - should I just keep inflating it until I hear something? Does bouncing it help set the bead? Is there a way of telling if I've got the bead set already?

I don't have a compressor at home so I'm making runs to the local gas station for air - kind of a pain. Don't want to overinflate it but want to make sure all is good.

Any advice?

Thanks all,
Matthew
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Old 08-21-2013, 10:58 AM   #2
Cycletech
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if the bead is seated all the way around, no need to inflate further. The pop generally happens when you introduce a large volume of air in a short amount of time. The wider the tire the more chance for the 'pop'.
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Old 08-21-2013, 11:10 AM   #3
grant22
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I overinflate to seat the bead, then relieve the pressure to a proper level.

Also, visually follow the radius of the tire along the rim, and you can see if there's any inconsistencies. If there are (wobble), there's a section not seated. I DO NOT RIDE until its all seated.
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Old 08-21-2013, 12:28 PM   #4
txbear55
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If unseated area of the bead is detectable, lube the crap out of it (water and soap), then air. Mine took 40-50 psi. to make it seat.
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Old 08-21-2013, 12:41 PM   #5
MortimerSickle
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I am not sure about all models, but my bike has a safety bead only on the rear rim.

The rear pops loudly when the tire seats, but the front just eases into place.
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Old 08-21-2013, 12:47 PM   #6
Martynho
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I ride em!

Plenty of lube (remember...never mount dry )
Bounce it a bit or hit it with a rubber mallet as you inflate
If it doesn't seat (may not pop, just make sure it is evenly seated all the way around as sometimes it just slips into place)
Overinflate to about 60-70 psi
If that doesn't do it I just install it and ride carefully for a few miles, it has always seated for me under load like that

Quote:
Originally Posted by grant22 View Post
I overinflate to seat the bead, then relieve the pressure to a proper level.

Also, visually follow the radius of the tire along the rim, and you can see if there's any inconsistencies. If there are (wobble), there's a section not seated. I DO NOT RIDE until its all seated.
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Old 08-21-2013, 02:21 PM   #7
mroddis OP
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Thanks

Thanks for all the advice.

Part of the problem is that i had to drive to the gas station to inflate and so the bead dried out. (I am waiting to pick up my BestRest pump at my US mailbox) I did inflate it rather slowly, so perhaps is just slid into place like Marty suggested.

I'll have a careful look/feel around the tire when I get back home. I presume an unbeaded tire should be fairly obvious to notice - i.e. look for any part of the tire that is 'wobbly' or is slightly back of the rim.

Will report tonight.

Thanks again - great advice as usual,
Matthew.
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Old 08-21-2013, 02:50 PM   #8
Martynho
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Its pretty obvious

Hi Matthew, yes it is quite obvious. If it looks right it is. If you want to be particular there is a ring on the tyre just check around to make sure it is concentric with the rim edge. Don't sweat on it too much mate.


Quote:
Originally Posted by mroddis View Post
Thanks for all the advice.

Part of the problem is that i had to drive to the gas station to inflate and so the bead dried out. (I am waiting to pick up my BestRest pump at my US mailbox) I did inflate it rather slowly, so perhaps is just slid into place like Marty suggested.

I'll have a careful look/feel around the tire when I get back home. I presume an unbeaded tire should be fairly obvious to notice - i.e. look for any part of the tire that is 'wobbly' or is slightly back of the rim.

Will report tonight.

Thanks again - great advice as usual,
Matthew.
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Old 08-21-2013, 02:57 PM   #9
mroddis OP
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Quote:
Originally Posted by Martynho View Post
Don't sweat on it too much mate.
Guess you could tell my nervousness through my posts....

Thanks for the input,
m.
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