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Old 05-09-06, 03:21 PM   #1
lilviper
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Quill to threadless

Is it possible to change from a quill to threadless type stem???


Thanks
JJ
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Old 05-09-06, 03:31 PM   #2
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Yeah, but you'd need to get a new fork with a longer steerer tube, and a new stem, and of cours ea new headset. May be worth it, depends on the bike and what you use it for, and how much you'd be upgrading it anyway. If everything currently on the bike is in good working condition, not really worth it. Would be worth it if you planned to upgrade the fork anyway, for example.

Also, most bikes with threadless systems have 1 1/8" headtube, while most bikes with quill stems have 1" headtube. However, threadless and threaded headsets are available on both sizes. If your bike has a 1" headtube (which is a good guess since it's threaded currently), your selection of forks is more limited. But there's enough.
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Old 05-09-06, 03:34 PM   #3
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You can use almost any threadless stem with the use of a quill adapter.

http://www.nashbar.com/profile.cfm?c...eid=&pagename=

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Old 05-09-06, 03:41 PM   #4
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Why do you need to switch?
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Old 05-09-06, 03:48 PM   #5
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I picked up a new truvative bar and stem, and they are threadless, i think that adapter would be the way to go though???


JJ
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Old 05-09-06, 04:30 PM   #6
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Quote:
Originally Posted by lilviper
I picked up a new truvative bar and stem, and they are threadless, i think that adapter would be the way to go though???JJ
Certainly would be. The adapter is a lot cheaper than a new fork and headset just to use a new stem.
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Old 05-09-06, 05:23 PM   #7
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Quote:
Originally Posted by timcupery

Also, most bikes with threadless systems have 1 1/8" headtube, while most bikes with quill stems have 1" headtube. However, threadless and threaded headsets are available on both sizes. If your bike has a 1" headtube (which is a good guess since it's threaded currently), your selection of forks is more limited. But there's enough.
For road bikes, this statement is mostly true.

For mountain bikes, this statement is mostly false. There were a great deal of MTB's made between 1990-1997 with threaded 1 1/8" steerer tubes.
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Old 05-09-06, 06:17 PM   #8
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Originally Posted by Svr
For road bikes, this statement is mostly true.
For mountain bikes, this statement is mostly false. There were a great deal of MTB's made between 1990-1997 with threaded 1 1/8" steerer tubes.
Good point - I was meaning to note the diff between road and off-road threaded-headset spec-ing in my original post.
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Old 05-09-06, 09:06 PM   #9
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Originally Posted by lilviper
I picked up a new truvative bar and stem, and they are threadless, i think that adapter would be the way to go though???


JJ
I used one of those adapters for quite some time and it worked just fine. The only issue was maybe a little extra weight, but not enough to really matter.
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Old 05-09-06, 10:45 PM   #10
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I used one a couple years ago. Cheapest one I found was at tri-zone, and I think it still is. They ship first class mail, too. Real cheap.

http://www.tri-zone.com/Details.html?cat=73&item=PFTCV
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