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Old 04-03-2013, 01:28 PM   #1
JDUBinCO OP
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Pissed Tubeless tire on a dirt bike rim- bead won't seat

I spooned a pair of Avon Distanzia dual support tires onto my XR400 rims and I just can't get the dang bead to seat. I've tried lots and lots of soapy water and way too much air pressure with no success. Same story for the front and rear tires. I've put lots of knobbies on and never had this problem before. Suggestions?

JDUBinCO screwed with this post 04-13-2013 at 10:10 PM
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Old 04-03-2013, 01:31 PM   #2
AustinJake
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Do you have a pic? Are you running rim locks? Is the bead not seating near/at the rim lock? Are you wanting to hear a "pop" or can you see a crooked place where the bead is not coming out all the way?

If there is one specific area that is not seating, try this:
Deflate down to 5-10 pounds, try to keep the areas that HAVE seated to where they STAY seated
Spray some silicone lube right on the rim/tire junction where the bead is not seating, no need to get the silicone anywhere else
Pump back up to 50-60 pounds.
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Old 04-03-2013, 05:48 PM   #3
prsdrat
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I'll ask the obvious, are you using a tube? Tubeless tires are only good
for tubeless rims, unless you use a tube.
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Old 04-04-2013, 07:56 AM   #4
joexr
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Spray armorall on the bead all the way around and put 100 PSI on it . If it still doesnt seat , ride it around the block a couple of times with the pressure still on it. It will seat. Tubeless tires are a lot tighter. They have to be.
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Old 04-05-2013, 08:02 AM   #5
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Ive put more then a few tubeless tires on regular rims,they dont bead up any harder or different then a tube designed tire.
Most likely the tube is pinched somewhere.
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Old 04-05-2013, 08:06 AM   #6
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Quote:
Originally Posted by joexr View Post
Spray armorall on the bead all the way around and put 100 PSI on it . If it still doesnt seat , ride it around the block a couple of times with the pressure still on it. It will seat. Tubeless tires are a lot tighter. They have to be.
That's really not good advice,if it takes 100PSI something is wrong,safety would say dont.
Tubeless tires are not tighter at all,they just have a different shaped bead for a tubeless rim.
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Old 04-05-2013, 01:36 PM   #7
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I go thru the same thing every time with the Excel rims on my SM and have many times on other bikes. And yes tubeless tires are tighter. Sell your crap to somebody else.
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Old 04-05-2013, 02:56 PM   #8
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Agreed, 100 psi is way too much. Dirt bike rims are more likely to have minor imperfections than road rims, maybe a slight bend in your rim refusing to seal? I usually put pressure in it and bounce it a couple times to get the tire to spread into the rim. Works after a few tries.

Good luck
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Old 04-05-2013, 03:13 PM   #9
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If nothing else works then take it to a shop and PAY them. Watch and ask them what theyre doing. I was skeptical myself. If you cant do something yourself , ask someone whos done it .
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Old 04-13-2013, 07:41 AM   #10
seabee1
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Are you running the tubliss system? If so, 100 lbs is what it calls for. I used to run tubliss on my drz and had great luck with it.
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Old 04-13-2013, 08:35 PM   #11
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Sticky compound rubber tires need good lubrication to seat properly. I use grease to put my street tires on my tubeless wheels. http://www.nomartirechanger.com/category_s/40.htm or Go to an auto parts store and get some tire lube like this: http://jtmproductsinc.net/tiremounting.html
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Old 04-13-2013, 10:08 PM   #12
JDUBinCO OP
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Thanks I'll try the tire lube. Yes it has a tube. I've done tons of knobbies without issue. I've gone all the way to 110psi and it wouldn't seat. I asked the sevice manager of my local moto shop and he said take it out and ride it. I've got about 180 miles on it now and the right side is seated but the left side is only seated on about 1/3 of the rim. It gives a weird wobble through steep fast left-handers.

On a plus note the Avons ride and handle great! Pretty good on some loose off road hill climbs and when they step out they do so predictably but in a big way. The deflection off sharp rocks is kinda unnerving but what else should I expect with 35 psi?
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