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Old 04-19-2015, 07:38 PM   #1
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Bolt on Steel Valve Stems for Sumec trailer rims

When upgrading from C load rated tires to D or E the low pressure rubber valve stems have to be replaced with high pressure Steel Bolt on valve stems. Just had my C's upgrade to Maxxis D's. Problem is finding steel bold on valve stems that will fit the Sumec trailer rims. The recess/counter bore is not large enough for these bolt on valve stems to fit into. Does anyone know where I can purchase steel bolt on valve stems for the Sumec trailer rims. Mean while I'm running a brass/rubber 125 PSI rated pull through that IMO is too flexible to use with my TPMS caps. Thanks..
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Old 04-19-2015, 07:48 PM   #2
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There are 2 or 3 different dia steel stems. Napa usually has at least 2 of them.
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Old 04-19-2015, 08:10 PM   #3
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Been to all the auto parts stores. There are two different sizes holes in rims, .625 and .453, the ones I need are the .453 hole, problem is the when you install them, the counter-bore on the face of the rim isn't large enough for the washer to go into ...(washer larger than the counter-bore hole)
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Old 04-19-2015, 08:16 PM   #4
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Had the same problem with my 06 rims, just eliminated the washer, put the nut on and tightened from the back instead of with the nut. Had to use a screwdriver to hold the nut.
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Old 04-21-2015, 10:55 PM   #5
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Ordered these, I believe they will fit Sumec rims and work great with my Tire Minder TPMS sensors since they are short. Will find out in a few days.
Einky Steel Valve Stem 3/4" for Light Trucks, Cars and Trailers w Pressure up to 200 PSI €” always shiny wheels and rv
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Old 04-25-2015, 11:26 AM   #6
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update
Quote:
Originally Posted by gashog View Post
Ordered these, I believe they will fit Sumec rims and work great with my Tire Minder TPMS sensors since they are short. Will find out in a few days.
Einky Steel Valve Stem 3/4" for Light Trucks, Cars and Trailers w Pressure up to 200 PSI — always shiny wheels and rv
These Einky 3/4 Steel Valve Stems fit the Sumec Rims perfect and the TPMS Sensors are neatly tucked in out of arms way. With the rubber valve stems you can see marks on the rims where the centrifugal force flexed the rubber stems outwards causing the Sensors to hit the rim.

We did a little experiment while balancing the tires. The guy balanced one tire without the Sensor on and then re-checked it with the Sensor on. Adding a Tire Minder Sensor on a balanced tire will take the tire .50 ounces out of balance.
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Old 04-25-2015, 11:31 AM   #7
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...We did a little experiment while balancing the tires. The guy balanced one tire without the Sensor on and then re-checked it with the Sensor on. Adding a Tire Minder Sensor on a balanced tire will take the tire .50 ounces out of balance.
So, did you balance with or without the sensor? When I did mine, we came up with very similar results, so we balanced with the sensor.
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Old 04-25-2015, 11:35 AM   #8
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Balanced with them on. Big THANK YOU for your suggestion to balance with them on in a previous post.
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Old 04-25-2015, 04:51 PM   #9
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For reference, this style also works well with a recessed hole...
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Old 04-25-2015, 05:08 PM   #10
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For reference, this style also works well with a recessed hole...
I tried that style, the recessed/counter bore hole on my type of Sumec Rims is also in the side of the rim. Hard to explain it not a flat surface. It's not a plain ole recessed hole its also in the side of the rim and there's no clearance for any steel valve stems that have the nut on the outside.
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