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Old 07-16-14, 08:14 AM   #1
rekt
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Need Help with Quill Stem Adapter Diameter

Sorry for a newbie question. I'm currently in the process of upgrading/updating my bike and I would like to replace the stock stem with threadless quill stem adapter , but I don't know which size should I buy.

This is my old stem. It's 22.2 in diameter. I think I have a 1'' threaded fork (not sure).



Replacement stem that I have - 28,6/25,4 mm fork diameter.



So should I buy the 25,4-28,6 (1'' to 1 1/8'') adapter or the 22.2-28.6 adapter?
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Last edited by rekt; 07-16-14 at 08:18 AM.
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Old 07-16-14, 08:32 AM   #2
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It would be nice if the linked pages had better descriptions... Looks like the 22.2-28.6 is the size you need to convert a 1" fork (that has a 22.2 ID) to a stem with a 28.6 ID. Andy.
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Old 07-16-14, 08:43 AM   #3
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An alternative is this Sunlite pop-top quill stem; there are others, as well.

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Old 07-16-14, 09:19 AM   #4
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The adapter is giving the true size, which for you is 22.2mm or 7/8" to fit into a 1" fork with a 1/16" wall thickness. The 1" (25.4mm) adapter fits the ID of a 1-1/8" fork with a 1/16" wall.
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Old 07-16-14, 09:35 AM   #5
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a tall one ... High Rider Stem Adapter 28.6/22.2 | SOMA Fabrications
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Old 07-17-14, 01:29 PM   #6
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An alternative is this Sunlite pop-top quill stem; there are others, as well.

Handlebar clamp : 25.4, 26.0 or 31.8 ?

Thanks
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Old 07-17-14, 05:10 PM   #7
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Handlebar clamp : 25.4, 26.0 or 31.8 ?
Dunno... just know of it.
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Old 07-17-14, 09:15 PM   #8
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Handlebar clamp : 25.4, 26.0 or 31.8 ?

Thanks
Dunno... just know of it.
Most of the time, quill stems are 26.0, but I've seen a fair number of 25.4 as well. Haven't seen a vintage-style quill stem that fits 31.8.
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