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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 10-20-09, 01:38 PM   #1
Germanicus
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Newbie DIY question

Hello,
I am converting an old MTB into a single speed roadbike. I am starting with a 1993 Giant Iguana frame, which I have stripped down, repainted and am now building back up. I have a 1-1/8" OD steerer tube on my threaded fork (1" ID) and would like to use a gooseneck 1" road style quill stem. (Possible a Nitto or Cinelli.) I have seen shims and adapters for using 1-1/8" stems with 1" steerers but nothing for the reverse.

So, is there any way to use a 1" quill stem on a MTB frame with a 1-1/8" threaded headtube/steerer?
Thanks.


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Old 10-20-09, 04:40 PM   #2
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I know there are welded 2-piece quills for MTBs but I really prefer the angled road stem. Anyone know a solution?
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Old 10-20-09, 04:41 PM   #3
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The solution is to get a 1 1/8 quill stem.
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Old 10-20-09, 05:09 PM   #4
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That's what I have been looking for but can't find. Do you know of any 1-1/8" "gooseneck" quill stem that are one-piece angled (like the nitto or Cinelli) and not the kind that has 1 vertical stem and another branch welded on the side of the vertical piece like most MTB quills?

In other words, i'm looking for a 1-1/8" quill that looks like this:

but not like this:


Barring that, Is there an adapter that I can use to fit a 1" quill on my MTB?

Thanks again.
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Old 10-20-09, 05:52 PM   #5
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http://shop.vendio.com/benscycle/ite.../?s=1256025362

Doesn't someone also make an adapter to use threadless stems?
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Old 10-20-09, 06:05 PM   #6
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1"

Thanks, but I believe that is a 1" Quill. I have found many 1" quill stems of that style, but no 1-1/8" quill stems in that style. Actually you would think that it would be easier retrofitting a 1" stem into 1-1/8" steerer with a simple shim, but I can't find one of those either.

I saw a threaded to threadless adapter, but I prefer the aesthetics of old classic road bike parts. Not giving up yet though. Appreciate any suggestions.
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Old 10-20-09, 06:12 PM   #7
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Thank You Kselad,
I was mistaken, that is for 1-1/8" headset. I will keep this one in mind, however, this is an angled riser stem (MTB style), and I would prefer a 90 angle like a road bike.
I know I sound picky, but If the product exists, I would like to use it.
Thanks

Last edited by Germanicus; 10-20-09 at 06:17 PM.
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Old 10-21-09, 04:25 AM   #8
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don't know of a 1 1/8" quill to 1" quill adapter. not just a matter of using a shim.
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Old 10-21-09, 04:57 AM   #9
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Here's a 1 1/8 stem with an adjustable angle.
But I wouldn't touch it with a barge pole.
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Old 10-21-09, 05:03 AM   #10
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Forget my last post.
this or this would be way better
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Old 10-21-09, 06:31 AM   #11
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Aren't those exactly the sorts of goopy welds the op said he wants to avoid?
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Old 10-21-09, 06:39 AM   #12
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^You're right. Didn't read the 2nd post.
I suppose this thread is really about aesthetics.
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Old 10-21-09, 06:41 AM   #13
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it's funny you ask this, OP, because it seems like such a simple thing, but i have NEVER heard of that sort of adapter :-/

i HAVE heard of headsets that will let you run a 1" fork on a 1 1/8" frame... if you did that and got a new fork then you could run whatever 1" quill you wanted
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Old 10-21-09, 07:27 AM   #14
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You can't adapt a 1" quill stem to 1 1/8" steerer. The quill makes an interference fit inside the steerer and that simply won't work with a shimmed tube. The wedge part will also be too narrow.
I guess you could try to bodge up some arrangement with a sleeve over the steerer and a wedge from a 1 1/8" stem, but I would not ride with. Having your stem and bars suddenly drop while riding is not my idea of an acceptable possibility.
1 1/8" threaded forks were only used on MTB's and only for a short time which is why a 1 1/8" road quill stem is so hard to find.
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Old 10-22-09, 04:54 PM   #15
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Have a framebuilder silver braze a 4" section of 1" steerer tube into the 1-1/8" steerer. I'd drill two 3/16" holes about 2" down the steerer, on the sides, and feed the silver into one hole till you can see it in the opposite hole and till silver can be seen at the top of the steerer.

All 1" steerers are not alike. I grabbed 4 at random and 2 slid easily into a 1-1/8" fork and 2 wouldn't go at all. He might need to slightly ream the fork for brazing clearance.
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Old 10-22-09, 05:35 PM   #16
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I don't think anything good would come of this.
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Old 10-22-09, 05:40 PM   #17
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^This. It would be a lot of effort and money put into this stem fetish before the OP discovered that MTBs on skinny tires look tragic.
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Old 10-26-09, 01:49 AM   #18
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Thanks everyone. I guess it can't be done. It was just an aesthetic thing. I don't know why MTB stems always have that little vertical extention above the bend in the stem. I will probably use a threadless stem adapter and add an ahead stem. thanks
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Old 10-26-09, 01:57 AM   #19
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This. It would be a lot of effort and money put into this stem fetish before the OP discovered that MTBs on skinny tires look tragic.

Yeah they look a little strange but it's a second bike and that's the frame I have to work with. I guess it's kind of anti-cyclocross singlespeed townie bike. prob. put some 32 mm Boroughs on my 26's and cruise around town in a gorilla suite...
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Old 10-26-09, 02:29 AM   #20
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How about a 1-1/8" quill to threadless adapter? Then you can run a nice Thomson stem and get a bit of bling factor back.

Here's one on Amazon.
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