Tubes - Correct valve stem fitment?

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Roxtar

Race Dog
Joined
Jun 14, 2010
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Bike
KTM 990 Adventure
So I fitted a new Michelin Anakee Wild 21" tyre and 4mm UHD tube as usual to the 990 prior to our Sani/Lesotho trip last weekend. The tyre shop did the usual fitment of the tube with one nut below the rim and one nut above the rim to secure the valve stem. I have seen this advocated on Youtube as well hundreds of times by various "experts" when fitting tubes/fixing punctures.

But, as I was standing around bored out of mind waiting for the wheel I happened to pick up the Michelin box and the fitment of the valve is indicated differently.... BOTH nuts ABOVE the rim! Obviously Michelin know a thing or two of how to fit a tube correctly! This is opposite to what I have normally seen being done at shops and in general.

So question is, how have you been fitting the valve stem and have the so called "experts" being teaching us wrong all this time....? Is the fitment different for MX/Enduro/Adv bikes at all? Is this only relevant to UHD tubes?

What do you do?
 

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