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Old 12-11-2017, 09:13 AM   #1
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Valve extensions for Isata 3 with Aluminum Wheels

I got a TPMS for my Isata 3 and want to replace the valves on the inner steel wheel duals with solid valves through my aluminum outer wheels using the appropriate rubber stabilizer grommet.

From prior threads, I thought the factory aluminum wheels were Hispec brand, but on their website they listed no 16Ē wheels (maybe OEM only?).

What have others had installed successfully at a tire shop? I know of one thread where someone had all the tools to do it their self bending the tube and all to fit the grommet. I donít have any of this equipment, so just want to buy two solid extensions and have them installed with stabilizer grommets. All the aluminum wheels already have solids metal valves, so just need the inner steel wheels.

I measured the opening on the aluminum wheels and they where 3 3/8Ē x 1 1/4Ē. Here is a picture of it helps.

I can see the inner rubber valve through the aluminum wheel and it has some kind of rubber extension, but still pretty much useless for any kind of service.
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Old 12-11-2017, 09:37 AM   #2
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Those are designed for a commercial chuck as I recall. Straight on the exposed one and a reverse on the inner.
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Old 12-11-2017, 09:43 AM   #3
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I don’t know what you mean by “chuck” or “reverse”
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Old 12-11-2017, 10:07 AM   #4
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dual foot

https://www.amazon.com/Dual-Foot-Loc...erse+air+chuck
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Old 12-11-2017, 11:39 AM   #5
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I am looking for permenant extensions, not just a different air chuck.
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Old 12-11-2017, 11:41 AM   #6
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Sorry, I misread that as the inner valve stem being worthless, but you were referring to it being worthless for TPMS.
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Old 12-11-2017, 01:05 PM   #7
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To take this a little further, My 2018 Fw didnít have extensions on the inside dually when I picked it up at the dealer. I quickly pointed it out and the verified they should be there and and someone come in and install them. I had problems related to the extensions with one of the inside dually continually going flat after returning home. I promptly took it to my own service center which I totally trust. They advised that the extension valve stem core was improperly installed but more importantly the inside dual valve stem (rubber) wasnít rated for the higher pressures and should be changed for safety. They replace the rubber stems with high pressure stems (in this case Brass) and added the back the metal extensions. No problems since.
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Old 12-11-2017, 01:14 PM   #8
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tubeless snap in valve stems come in "up to 65 psi" flavor and they also make rubber ones for 85psi and up to 100 psi. I have zero argument at all against going metal...but to say that they should be changed for safety is a reach.

Just for the record, Isata 3 rears are rated at 65 psi. What "can be done", "should be done" and "would be awesome if they did" are not to be confused for one another.
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Old 12-11-2017, 01:29 PM   #9
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I also worried that the rubber stems with extension would have to much movement this a tmps attached to the stem which I plan to add this week. They shipped today.
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Old 12-11-2017, 01:57 PM   #10
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That is a valid concern if you are putting on TPMS.
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