Author Topic: Setting bead on rear  (Read 985 times)

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Offline C. Moore

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Setting bead on rear
« on: March 04, 2018, 01:01:28 am »
Trying to set the bead on my spare rear tire. So far no luck. Any tips or tricks y’all can share?
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Offline jwh20

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Re: Setting bead on rear
« Reply #1 on: March 04, 2018, 02:08:56 am »
A couple of tricks that I use:

1) Put the valve core in, pick the wheel up and bang the tire onto the ground.  The pressure will often seat the bead well enough to allow you to inflate.

2) Take a ratchet strap and wrap it around the circumference.  As you ratchet it down it will press the beads outward.  Put a LITTLE air in but don't inflate too much or the strap may break and injure you.

If all else fails, take it to a tire shop and ask them to seat the beads.  They have a high-volume air supply that will do it easily.  But I've never had to do this.  The techniques above have not yet failed me.
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Offline Justin726

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Re: Setting bead on rear
« Reply #2 on: March 04, 2018, 02:58:18 am »
A little bit of Windex around the bead to lubricate it, then just start putting air in it.  I'll put in a few extra lbs just to make sure it's fully seated, but it usually pops into place pretty easily. 

I've had to do the rachet strap trick only on mower tires, but never on a motorcycle.  The only reason for doing this trick is if there isn't enough contact between the tire/rim to even hold any air at all.  If the tire holds air but simply won't slide into the bead I don't think this trick will help you much.

What difficulties specifically are you running into with the rear tire?

Offline Deepsea

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Re: Setting bead on rear
« Reply #3 on: March 04, 2018, 07:05:26 am »
Never ever use Armorall on the bead of a tire. Don't ask how I know this. If you don't have or can't get "Tire Lube" then mix a few drops of dish soap in a little water, mix it up and use the suds to lube the bead just before adding air. It's a really bad idea to exceed the max pressure by more than 15%. I've seen bike and tire shops put as much as 100psi in tires to set the bead, that's not good. Never stand over the tire when doing this, stand to the side. I've seen tires explode from internal (unseen) damage and they go outward with enough force to cause serious injury. Only happened once, but that's enough. WD40 is another one you Don't want to ever use for this.
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Offline Deepsea

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Re: Setting bead on rear
« Reply #4 on: March 04, 2018, 07:07:27 am »
Windex contains Ammonia which is not good for rubber.
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Offline C. Moore

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Re: Setting bead on rear
« Reply #5 on: March 04, 2018, 10:39:52 am »
Thanks for the tips. I'll put the stem back in and try and few bounces. I took it out and tried pouring air in with the chuck off but got not love. I told my wife I might just have to go buy a bigger air compressor.
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Offline jwh20

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Re: Setting bead on rear
« Reply #6 on: March 04, 2018, 10:58:16 am »
Thanks for the tips. I'll put the stem back in and try and few bounces. I took it out and tried pouring air in with the chuck off but got not love. I told my wife I might just have to go buy a bigger air compressor.

It's usually not the size of the compressor but the size of the air lines.  But a bigger compressor is always better.  Use the opportunity!   :great:

There are also devices like this:

https://www.northerntool.com/shop/tools/product_200673910_200673910

I don't have one but have seen these used effectively.  There is also the dumba__ method which I don't recommend:

https://www.youtube.com/watch?v=GmMsBSbFq-g
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Offline Not So Wild Turkey

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Re: Setting bead on rear
« Reply #7 on: March 04, 2018, 03:45:40 pm »
C. MOORE
I'm in the dfw area (during the work week) and have no mar tire lube and compressor if you want help.  We can try all of the above tips and see what happens.  Let me know.  I've mounted 8 plus tires with no issue.  The only bead seat problem was when I was running a car tire on my vtx.
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Offline Deepsea

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Re: Setting bead on rear
« Reply #8 on: March 04, 2018, 04:54:36 pm »
The only tire I have a problem with is the Dunlop Q3+. They have an extremely stiff bead core made of carbon fiber. It helps if the tire is warm.  Letting it sit in the sun for a few of hours and plenty of lube usually does the trick.
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Offline oldnslo_MO

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Re: Setting bead on rear
« Reply #9 on: March 04, 2018, 07:08:38 pm »
C. MOORE
I'm in the dfw area (during the work week) and have no mar tire lube and compressor if you want help.  We can try all of the above tips and see what happens.  Let me know.  I've mounted 8 plus tires with no issue.  The only bead seat problem was when I was running a car tire on my vtx.
please tell us you discontinued the car tire on the vtx.. car tires are not designed for bikes..i have personally witnessed some very serious incidents with the use of a car tire on a gold wing...the only thing between your a** and the pavement is your tire, your well being is not worth maybe saving a few bucks by using a car tire...IMHO, now i'll get off my soap box... :great:
happy trails  2016 concours14,2010 bmw k1300ggt, 2015 bmw r1200rt, 09 concours14, 75 kawasaki H1   500cc*79 triumph bonneville750* 2 each  82su zuki gs1100e* 05 yamaha fz1 1100* 03 yamaha fz1 1100*01 goldwing 1800*97 goldwing 1500* 93 goldwing 1500* 80 kawasaki vulcan 1500*76 kawasaki kz650* 66 triumph Bonneville 650* 68 triumph tr 650* 72 norton commando750* 70 bsa rocket III 750*  68 hon cb350* 66 hon cb305*1960 BSA golden flash 500cc*1950 cushman

Offline oldnslo_MO

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Re: Setting bead on rear
« Reply #10 on: March 04, 2018, 07:09:57 pm »
The only tire I have a problem with is the Dunlop Q3+. They have an extremely stiff bead core made of carbon fiber. It helps if the tire is warm.  Letting it sit in the sun for a few of hours and plenty of lube usually does the trick.
:goodpost:
happy trails  2016 concours14,2010 bmw k1300ggt, 2015 bmw r1200rt, 09 concours14, 75 kawasaki H1   500cc*79 triumph bonneville750* 2 each  82su zuki gs1100e* 05 yamaha fz1 1100* 03 yamaha fz1 1100*01 goldwing 1800*97 goldwing 1500* 93 goldwing 1500* 80 kawasaki vulcan 1500*76 kawasaki kz650* 66 triumph Bonneville 650* 68 triumph tr 650* 72 norton commando750* 70 bsa rocket III 750*  68 hon cb350* 66 hon cb305*1960 BSA golden flash 500cc*1950 cushman

Offline C. Moore

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Re: Setting bead on rear
« Reply #11 on: March 04, 2018, 09:53:37 pm »
Thanks for all the suggestions. I took it to the corner tire shop. They had the bead popped in about 10 seconds with their 185 psi compressor. My little grizzly pushes 100 psi.
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Offline Not So Wild Turkey

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Re: Setting bead on rear
« Reply #12 on: March 05, 2018, 12:13:30 am »
Glad you were successful.  If you ever need help in the future I'm willing for you to contact me since I'm close.  Ride safe

As far as the car tire I'll leave that subject alone.  Different strikes.  And I in no way advocated it for anyone.  Ride safe.
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Offline Old Man on a Connie

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Re: Setting bead on rear
« Reply #13 on: March 07, 2018, 01:26:55 am »
Step 1. Say here, hold my beer.
Step 2. Fill tire cavity with Starting fluid.
Step 3. Step back a dozen feet and strike match.
Step 4. Throw match at tire, drop to the ground with feet pointing at said tire, cover extremities.
I'M KIDDING!!! :) Don't ever do this  :-[ (full disclosure I have done this on off road rock crawler tires and step 1 holds true  :)) I also use the dish soap in a spray bottle. Doesn't seat 1st time deflate, pry back trouble spot with a tire iron a bit. Spray liberally with magic lube and re inflate. Still makes me flinch on that Ping when that bad boy goes home though. HATE that.
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Offline C. Moore

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Re: Setting bead on rear
« Reply #14 on: March 07, 2018, 11:01:33 am »
Step 1. Say here, hold my beer.
Step 2. Fill tire cavity with Starting fluid.
Step 3. Step back a dozen feet and strike match.
Step 4. Throw match at tire, drop to the ground with feet pointing at said tire, cover extremities.
I'M KIDDING!!! :) Don't ever do this  :-[ (full disclosure I have done this on off road rock crawler tires and step 1 holds true  :)) I also use the dish soap in a spray bottle. Doesn't seat 1st time deflate, pry back trouble spot with a tire iron a bit. Spray liberally with magic lube and re inflate. Still makes me flinch on that Ping when that bad boy goes home though. HATE that.

Yea, I've seen some of those videos. People can come up with some crazy ways to do things. I've got two rear wheels so I keep one in spare mode for that nail that eventually finds it's way into the rear. Dang bead just wouldn't pop for me.
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Offline Zarticus

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Re: Setting bead on rear
« Reply #15 on: March 07, 2018, 12:06:15 pm »
Step 1. Say here, hold my beer.
Step 2. Fill tire cavity with Starting fluid.
Step 3. Step back a dozen feet and strike match.
Step 4. Throw match at tire, drop to the ground with feet pointing at said tire, cover extremities.
I'M KIDDING!!! :) Don't ever do this  :-[ (full disclosure I have done this on off road rock crawler tires and step 1 holds true  :)) I also use the dish soap in a spray bottle. Doesn't seat 1st time deflate, pry back trouble spot with a tire iron a bit. Spray liberally with magic lube and re inflate. Still makes me flinch on that Ping when that bad boy goes home though. HATE that.
Been doing the starter fluid trick for over 30 years. Just a short spray & I use one of those long lighters you use on a grill. Works every time. If your an idiot & spray a crap load of starter fluid in the tire then your asking for trouble, A few morons have given this technique a bad name by doing it wrong  :-[ 
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Offline oldnslo_MO

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Re: Setting bead on rear
« Reply #16 on: March 07, 2018, 01:40:08 pm »
i find i t amusing you calling people idiots and morons, my feeling is anyone using your explosive tire bead sealing trick qualifies for those adjectives. it's dangerous and totally unnecessary,other former  methods outlined above will work fine if done correctly.   :??:
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Offline Deepsea

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Re: Setting bead on rear
« Reply #17 on: March 07, 2018, 07:30:22 pm »
Unless you're out in the middle of BFE or the Mojave desert and your little pump just doesn't have enough umph.


I don't recommend it but I have used gasoline when it was that or walk for miles and miles.
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Offline Zarticus

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Re: Setting bead on rear
« Reply #18 on: March 07, 2018, 11:04:21 pm »
i find i t amusing you calling people idiots and morons, my feeling is anyone using your explosive tire bead sealing trick qualifies for those adjectives. it's dangerous and totally unnecessary,other former  methods outlined above will work fine if done correctly.   :??:
The 'idiots and moron" remark is not directed towards anyone here. I'm talking about some of the videos on youtube that show people spraying half a can in the tire which gives this technique a bad name !. I'm not recommending anyone to try it if they are not sure of what they are doing  :beerchug:
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Offline JTX

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Re: Setting bead on rear
« Reply #19 on: March 08, 2018, 11:26:54 pm »
Thanks for all the suggestions. I took it to the corner tire shop. They had the bead popped in about 10 seconds with their 185 psi compressor. My little grizzly pushes 100 psi.


Yep.  You need a good 120PSI to really get it done right.

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Re: Setting bead on rear
« Reply #20 on: March 09, 2018, 02:59:10 am »
Thanks for all the suggestions. I took it to the corner tire shop. They had the bead popped in about 10 seconds with their 185 psi compressor. My little grizzly pushes 100 psi.
Yep.  You need a good 120PSI to really get it done right.
200psi+ tank controlled by a ball valve, schrader valve removed, short hose hose-clamped to the valve stem.
Works every-time.
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Offline Deepsea

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Re: Setting bead on rear
« Reply #21 on: March 09, 2018, 03:27:47 pm »
120 psi !! Ever wonder why manufactures' warn against this? You "Might" get away with it and you might not. I have personally seen a tire explode for this very reason. 120 psi is 3 times the rated pressure limit. Do what ever you want but don't cry when the Dr. is picking rubber out of your skin. Just sayin'.
« Last Edit: March 09, 2018, 07:18:13 pm by Deepsea »
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Offline C. Moore

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Re: Setting bead on rear
« Reply #22 on: March 10, 2018, 10:56:50 am »
120 psi !! Ever wonder why manufactures' warn against this? You "Might" get away with it and you might not. I have personally seen a tire explode for this very reason. 120 psi is 3 times the rated pressure limit. Do what ever you want but don't cry when the Dr. is picking rubber out of your skin. Just sayin'.

JTX, is talking about the air compressor pressure. I've been shopping for a compressor that's a little bigger.  I figure some more capacity and some more pressure will help for the next time around. That old grizzly is loud as all get out anyway.

I saw a lady blow up a tire on a volkswagen some years ago at a gas station. Sounded like a bomb going off. The shock waves rattled the glass inside the station where I was standing.
« Last Edit: March 10, 2018, 11:11:27 am by C. Moore »
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Offline JPD

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Re: Setting bead on rear
« Reply #23 on: March 10, 2018, 02:31:15 pm »
Any method that you can use to seat the bead on a tire will increase the pressure way above the rated pressure for the tire. That is what it takes to get the bead over the ridge in the wheel.
How much pressure do you think you get when you hit that pot hole at 75 or 80 mph. Yes it can cause a blow out or major tire damage but the pressure is a huge spike. Even riding your fully loaded bike around a corner will put a higher load on the tires and increase the pressure due to G loading

Offline oldnslo_MO

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Re: Setting bead on rear
« Reply #24 on: March 14, 2018, 12:02:12 am »
have mounted hundreds of tires, usually never takes more then 40psi if proper rubber lube is used. :??:
happy trails  2016 concours14,2010 bmw k1300ggt, 2015 bmw r1200rt, 09 concours14, 75 kawasaki H1   500cc*79 triumph bonneville750* 2 each  82su zuki gs1100e* 05 yamaha fz1 1100* 03 yamaha fz1 1100*01 goldwing 1800*97 goldwing 1500* 93 goldwing 1500* 80 kawasaki vulcan 1500*76 kawasaki kz650* 66 triumph Bonneville 650* 68 triumph tr 650* 72 norton commando750* 70 bsa rocket III 750*  68 hon cb350* 66 hon cb305*1960 BSA golden flash 500cc*1950 cushman