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Old 01-16-14, 09:09 PM   #1
rag3
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Why doesn't this headset fit my frame?

I recently got an Unknown Lv-1 frame and I had a problem with the one of the headset cups fitting the headtube. I'm new to building so I'm not familiar with the many variations of headsets and sizes. I thought a 1-1/8" headset should fit my 1-1/8" headtube (which is the only spec I could find) but apparently I'm missing something. This is the headset I purchased.. http://www.jensonusa.com/Ritchey-Log...adless-Headset

I was able to fit the top cup in, but the bottom cup just fell right back out as if it was too skinny to fit the headtube.. Im not sure what kind of headset I need to fix this..

This is a headset someone else with the same frame got. http://www.chainreactioncycles.com/u...et/rp-prod6183

Not sure what it is about this headset that makes it compatible.. the 36/45 degree? the stack height? or that it is integrated?

Thanks for any help anyone can give. Let me know if you need more info.
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Old 01-16-14, 09:20 PM   #2
Kimmo
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Originally Posted by rag3 View Post
or that it is integrated?
This.

Here - http://www.canecreek.com/headset-fit-finder
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Old 01-16-14, 09:41 PM   #3
hueyhoolihan
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ya, your headset and your friends headset are not designed for the same type of headtubes. since yours doesn't work and his does, i'm assuming, i would get the one he has.

the headset you have, and i have a few, is called a "1 1/8" traditional threadless headset", OTOH his is called an "integrated headset" as you and others have pointed out. NOT the same.

too bad, yours is cheaper.

life is a learning experience. be happy it's not an expensive mistake, like buying an engraved engagement ring for someone that morphs into a harpy after the purchase...
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Old 01-16-14, 10:07 PM   #4
Bezalel
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The Unknown website has remarkably few published specs but the concave headtube is often an indication of an integrated headset.
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Old 01-17-14, 12:55 PM   #5
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From the citygrounds website:
HEADSET: FSA Impact Internal / Or any Campagnolo 45/45 Stack Headset

so yes you need an internal (integrated) headset.
i only checked as I initially thought it may be a 1 1/8" top and 1.5" bottom which is popular now in MTB and CX frames.
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Old 01-20-14, 02:45 AM   #6
rag3
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Thanks guys. I've ordered the FSA impact internal. I don't know how I overlooked that considering that's where I bought my frame.. also that link from Kimmo is a great resource.
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