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Get schrader to presta grommet (valve stem saver) or just buy schrader tubes?

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Get schrader to presta grommet (valve stem saver) or just buy schrader tubes?

Old 02-26-12, 07:07 PM
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MDI
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Get schrader to presta grommet (valve stem saver) or just buy schrader tubes?

How does everyone feel about these valve stem adapter things to convert a schrader rim to accept presta tubes? I have more/better skinny presta tubes and don't feel like buying schrader just for this bike. I am talking about getting an aluminum valve stem saver like this https://www.amazon.com/VALVE-STEM-SAV.../dp/B0017HVTWI (or I guess I could stop being cheap/lazy and buy a set of schrader tubes... plus spares... and forget about it).

So, what's the preferred way to go? Has someone done this for a long while with high pressure and no problems? Thanks.
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Old 02-26-12, 07:11 PM
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digger531
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i have used them for 1000 miles and no problems
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Old 02-26-12, 07:24 PM
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Bezalel
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I use Presta tubes on all my bikes. I prefer using a nut to center the valve stem. This is what I use but not what I spend: https://www.amazon.com/Panaracer-Schr.../dp/B001CJZ2M4
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Old 02-26-12, 07:27 PM
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coupster
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I use them on my touring bike. You never known what will be available when you need a tube. I've never had an issue with them, you just have to remember they're there when you're sitting on the side of a road and are taking a blown tube off the rim. Lose one in the grass and you will never find it.
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Old 02-26-12, 07:32 PM
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FastJake
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Personally I prefer Schrader valves but I don't want to start that argument again... Since you already have Presta tubes I'd just use one of the little nuts that most people throw away and run it all the way down the valve before you install the tube/tire.
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Old 02-26-12, 08:03 PM
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If you're not using a super-high air pressure and you're careful about installing new tubes, you can usually just put a presta tube in a schrader rim without an adapter. I've been doing that with on several different rims for years with no problems.
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Old 02-26-12, 08:10 PM
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fietsbob
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presta valves are secured by the top nut, once you tap the end
to break the sticky check valve open
all that keeps it shut ,is the air pressure inside is greater than it is inside.
whereas a Schrader valve is closed with a spring in the valve core ,
so each pump stroke you open the valve spring too..
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Old 02-26-12, 08:19 PM
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I use presta on all my bikes just so I don't have to carry two different spare tubes.
I just use a washer that fits around the presta valve stem, bend it to the contours of the inside of the rim and put it under the rim tape. It's never failed me before.
My girlfriend bought a bike and put about 1,000 miles on it before we noticed that the rear rim was drilled for schrader and had presta in it. It probably would've been fine, but a washer costs like 10 cents, so I put a washer on it.
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Old 02-26-12, 08:24 PM
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Originally Posted by fietsbob View Post
presta valves are secured by the top nut, once you tap the end
to break the sticky check valve open
all that keeps it shut ,is the air pressure inside is greater than it is inside.
whereas a Schrader valve is closed with a spring in the valve core ,
so each pump stroke you open the valve spring too..
Except that any decent pump made to be used with Schrader valves includes a little nub in the pump head that depresses the valve spring. So the valve is open the whole time that the pump head is attached and is not opened with each pump stroke.

On the OP issue, I agree with johnny99 above that in my experience Presta valve tubes can frequently be used without any problems in rims with Schrader-size holes. Ran our tandem that way for a few years at 125 psi and never had any problems associated with the valve hole.
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Old 02-27-12, 06:56 PM
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Soil_Sampler
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rim grommet



https://aebike.com/product-list/panar...3-m25233-qc30/

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Old 02-27-12, 07:53 PM
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I have used the rubber sleeves as well as I have a more solid one that came with a wheel. The rubber ones can get pushed out and be a pain when putting the tube in. Have also run without them with no problems.
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Old 02-27-12, 08:58 PM
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I like the rubber ones best. Like soil_sampler posted. The alloy ones stick out too far & look odd to me. I have used the plastic cap off a Schrader stem, cut the top off and it is a perfect size.
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