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Tire Valve Stems


MarkAZ

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I'm planning on new tires soon and figured I should also replace the valve stems. Should I use metal stems? And what size is the hole in the wheel? It's a 2004 R1150RT. Thanks...

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Valve stems should be changed with every tire change, metal stem or not. The metal stems seal to the wheel with rubber, too. The metal is just there for show.

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OK...I read thru the thread in the link that Selden posted and now I'm confused.

 

I looked at several different valves mentioned in the link. I see various sizes...8mm, 10mm, 11mm, and several inch sizes. I looked at the fiche for the bike and the BMW part says D=15mm. So which is it? I didn't think it would be that confusing. Never had to worry about it with tube tires... ;)

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The metal stems do have a plastic on the inner side, but my guess is that it will loose it's flexing later in time than the regular rubber stems.

 

Anyway, since I switched to metal stems, pressure stays pretty constant and I do not need to check that often...

 

Dan.

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Anyone know what size the hole in the rim is?

 

I suppose I could measure it when I get the tire off but I'd like to have everything on hand before I start.

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Anyone know what size the hole in the rim is?

 

I suppose I could measure it when I get the tire off but I'd like to have everything on hand before I start.

 

I think the rim hole size is 11.5mm (0.453"). I get Bikemaster 15mm 03-37-2 valve stems for mine.

 

 

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I bought a bag of 10 metal valve stems from http://patchboy.com years ago. They attach inside with a jam-nut and are indeed metal all the way through. There is a rubber grommet where the stem goes through the rim. I think I paid $1.10/valve stem. They are simple straight valves 0.453" in diameter. They fit my wife's Ninja too!

I decided to get them after reading about a terrible accident someone from this board had due to catastrophic rubber valve stem failure.

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