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Presta Tube in Schrader Rim? Rubber/Metal Grommet?

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Presta Tube in Schrader Rim? Rubber/Metal Grommet?

Old 02-28-19, 02:31 AM
Bob Jackson1
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You can buy designated plastic valve hole adapters

I got mine included with a pair of Mavic A319 rims..
Search the net.

cheers, Martin😉
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Old 02-28-19, 07:13 AM
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I use the Wheels Manufacturing sleeves on my trike with 20" wheels and they work fine. They are a tight fit through the Schrader hole. They do stick up a bit so I am thinking about trimming them down the next time I have the tires off. I have also used stepped nuts for presta valves. These come with Schwalbe and Continental tubes. The diameter of the step fits into the Schrader hole to stabilise the stem.
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Old 02-28-19, 02:52 PM
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bubble flare some aluminum tubing that will slip around the PV & not go past the PV's wheel pass-thru opening.
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Old 02-28-19, 03:07 PM
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Originally Posted by madpogue View Post
. . . but by what manner of thinking could someone get the notion that the function of such a simple device would depend on the rim diameter?
By what manner of thinking could someone get the notion that a single anonymous (Amazon) internet opinion merits any consideration at all, or that soliciting more anonymous internet opinions (bikeforums.net) could get closer to truth?
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