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Threadless headset to threaded fork help

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Old 07-13-20 | 05:33 AM
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Threadless headset to threaded fork help

After a lot of searching and digging around I’ve finally given up the ghost regarding this headset on a bike frame I’ve inherited.

The previous owner has put in an aheadset quill stem converter/extender in order to fit a clamp on stem, I imagine. The forks are still 1” threaded and when assembled, the top race sits on the threads of the fork.

Headset cups/ threadless headset is a Cane Creek 40, and I basically want a 1 inch threaded top race to match this arrangement so I can use a quill stem, prefereably not needing to change the cane Creek cups in the headtube.

Has anyone got any recommendations or knowledge of a 1inch threaded top race to match sealed bearings, or whether I can put loose bearings in the cups for this?

If my text makes no sense, I hope the pictures do...



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Old 07-13-20 | 06:38 AM
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I have a quill converter on one of my bikes, but I retained the threaded headset. Basically just popped out the stem and inserted a converter.

So you should be able to install a normal 1" threaded headset and be back in business?
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Old 07-13-20 | 07:05 AM
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Sure, but I guess I need to change the cups in that case?

im wondering if the cartridge bearings from a threadless headset can work with a standard 1” threaded
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Old 07-13-20 | 07:43 AM
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Originally Posted by Rodrider88
Sure, but I guess I need to change the cups in that case?

im wondering if the cartridge bearings from a threadless headset can work with a standard 1” threaded
Perhaps they will fit if you are lucky but you probably can't buy just the cups for a threaded headset. You are going to have to buy the entire thing and it will come with both bearings and a new crown race.
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Old 07-13-20 | 07:51 AM
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I vote for just getting another headset. Not much money to be saved, if any, by just buying a few parts over buying a whole new headset and everything will be brand new.
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Old 07-13-20 | 09:04 AM
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Yea fit the threaded headset & lock nut,

Quill stem raisers are a steel tube.. stepped to be same ID in top as the OD on the bottom.
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Old 07-13-20 | 10:49 AM
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Originally Posted by Rodrider88
After a lot of searching and digging around I’ve finally given up the ghost regarding this headset on a bike frame I’ve inherited.

The previous owner has put in an aheadset quill stem converter/extender in order to fit a clamp on stem, I imagine. The forks are still 1” threaded and when assembled, the top race sits on the threads of the fork.

Headset cups/ threadless headset is a Cane Creek 40, and I basically want a 1 inch threaded top race to match this arrangement so I can use a quill stem, prefereably not needing to change the cane Creek cups in the headtube.

Has anyone got any recommendations or knowledge of a 1inch threaded top race to match sealed bearings, or whether I can put loose bearings in the cups for this?

If my text makes no sense, I hope the pictures do...


That is one odd duck. Bonus points to the previous owner for ingenuity but it’s still a kluge job. Are there any threads showing above the top cap? You might be able to do something like a Chris King 2Nut. It’s another kludge job but not quite as bad as you’ve got there.

Alternatively, you can just get a new threaded headset. They are relatively cheap and not that hard to replace.
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Old 07-14-20 | 08:43 PM
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Innicycle headset would let you keep the current stem/bar
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