Threaded Headset Swap
I'm stripping a vintage Pinarello frame and swapping the components to a vintage Paco Columbus TSX frame, but I have to replace the Campagnolo headset because the bearing races are pitted.
The Paco has a stack height of 50mm; that is, the steering tube is 160mm, and the head tube is 110mm. And there is only 1 inch of thread on the steering tube. So 50mm is the absolute tallest headset I can use, correct? I've been thinking about Velo-Orange's sealed bearing headset, which is 41mm (I guess I'm not allowed to post a link, since I'm a newbie, but it's on Velo-Orange's website). Can I assume because the threading on the steering tube is so short that I'll need some spacers as well? |
With only 1' of threading on the steering tube I would better assume you'll need a shorter stack headset like tange passage or levin.
A few more posts and you posts pictures. |
Originally Posted by malcala622
(Post 21883610)
With only 1' of threading on the steering tube I would better assume you'll need a shorter stack headset like tange passage or levin.
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The thread top race on the 41mm headset may take the whole threaded portion of the steer tube. Same thing happened to my Basso where I tried installing a Campagnolo SR headset and it took all the threading.
I ended up needing a shorter stack headset. |
Originally Posted by Jordanmilo
(Post 21883594)
The Paco has a stack height of 50mm; that is, the steering tube is 160mm, and the head tube is 110mm. And there is only 1 inch of thread on the steering tube.
So 50mm is the absolute tallest headset I can use, correct? I've been thinking about Velo-Orange's sealed bearing headset, which is 41mm (I guess I'm not allowed to post a link, since I'm a newbie, but it's on Velo-Orange's website). Can I assume because the threading on the steering tube is so short that I'll need some spacers as well? I'm thinking that this probably isn't the original fork for that frame. Is it? |
Originally Posted by JohnDThompson
(Post 21883706)
I'm thinking that this probably isn't the original fork for that frame. Is it?
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I guess maybe I’ll have to thread the steerer further. How do I get that done?
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1 Attachment(s)
Originally Posted by Jordanmilo
(Post 21883780)
I guess maybe I’ll have to thread the steerer further. How do I get that done?
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Unfortunately, the advice from the Facebook group is not accurate.
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Originally Posted by natterberry
(Post 21884633)
Unfortunately, the advice from the Facebook group is not accurate.
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It would be an echo of what has been posted here. You'll need to take up Velomine's offer.
Facebook post examples: "A standard threaded headset will fit fine." "Spacers will work. They just fit where the flat washer is between the top nut and the adjusting nut." Top nut and adjusting nut space isn't the issue, it's the space where the bearings sit. Edit: You can post pictures now. |
Originally Posted by natterberry
(Post 21884678)
It would be an echo of what has been posted here. You'll need to take up Velomine's offer.
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Originally Posted by Jordanmilo
(Post 21884746)
Thanks. I will visit them. I don’t like the idea of a headset all padded out with spacers, aesthetically.
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https://cimg6.ibsrv.net/gimg/bikefor...9872c65a2.jpeg
Just practicing. |
Looks like a problem: you'll probably need more threading on the steerer to use any common headset and so will allow the threaded top cup to engage. The top nut is least of your problems and if you hate spacers you could cut off excess (threaded) steerer but you don't have "excess", IMO. Getting threading added USED to be a relatively "routine" job for a well-fitted and experienced shop, but nowadays not so! Depends on your location and luck. Always BEST if you can find somebody with a lathe and experienced in cutting threads that way, generally better threads than with a die. Even HARDER to find that! Good luck to you, I have been down this road several times and feel the pain!
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I'm going to talk to a local shop tomorrow to see what they say. In the interest of improving the knowledge base, I'll keep everyone posted.
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why couldn't a threadless headset be used? then lock it down with a spacer or two, a threaded ring, and the top locknut? i don't know. maybe it wouldn't work or "look right" ...though i imagine it'd look fine depending on the headset. conversely, use a threaded headset, dremel the threads on the top threaded race and then proceed with spacer/s, ring, and locknut. in that case, it'd still look like a threaded headset ..ie. not out of place
it's just a thought if getting more threads cut proves to be too much difficulty |
Originally Posted by thook
(Post 21885854)
why couldn't a threadless headset be used?
Of course, extending the threads would the preferred solution. |
Originally Posted by thook
(Post 21885854)
why couldn't a threadless headset be used? then lock it down with a spacer or two, a threaded ring, and the top locknut? i don't know. maybe it wouldn't work or "look right" ...though i imagine it'd look fine depending on the headset. conversely, use a threaded headset, dremel the threads on the top threaded race and then proceed with spacer/s, ring, and locknut. in that case, it'd still look like a threaded headset ..ie. not out of place
it's just a thought if getting more threads cut proves to be too much difficulty |
Originally Posted by Jordanmilo
(Post 21883594)
I'm stripping a vintage Pinarello frame and swapping the components to a vintage Paco Columbus TSX frame, but I have to replace the Campagnolo headset because the bearing races are pitted.
The Paco has a stack height of 50mm; that is, the steering tube is 160mm, and the head tube is 110mm. And there is only 1 inch of thread on the steering tube. So 50mm is the absolute tallest headset I can use, correct? I've been thinking about Velo-Orange's sealed bearing headset, which is 41mm (I guess I'm not allowed to post a link, since I'm a newbie, but it's on Velo-Orange's website). Can I assume because the threading on the steering tube is so short that I'll need some spacers as well? Another safe approach is to obtain another Campy headset with the same dimensions as yours, or to find replacements for the worn parts. If its a vintage steel Campagnolo Record (the Super Record had alloy pressed cups), the Tange Prestige and its parts from those days was a common replacement. Even back then the new price of the Campy Record parts was kind of prohibitive. |
Originally Posted by Jordanmilo
(Post 21885321)
I'm going to talk to a local shop tomorrow to see what they say. In the interest of improving the knowledge base, I'll keep everyone posted.
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Originally Posted by Road Fan
(Post 21886244)
I'd be surprised if most LBS' are savvy on threaded headsets and especially vintage Campy!
Otherwise, I couldn’t find a Park CRC in town. |
Originally Posted by Road Fan
(Post 21886244)
I'd be surprised if most LBS' are savvy on threaded headsets and especially vintage Campy!
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Originally Posted by J.Higgins
(Post 21886028)
If the OP is concerned about the aesthetics of a couple of spacers in a new headset, then he's probably going to be really off about using a threadless headset. Besides that, a 1" threadless headset is a rare breed these days. I have one on my Bilenky, and its a Chris King. Expensive, and I wish it was a 1" threaded instead. It would make life a whole lot easier.
1" threadless headsets are not uncommon. not sure where you get that idea. i picked up a ritchey for $25 or so on ebay not long ago. saw plenty of others, too. as well, the ritchey sets are on amazon, but they suck more than anyone else in the world |
Originally Posted by Jordanmilo
(Post 21886330)
The good folks at Velo Mine seemed quite comfortable with the subject. Velo-Orange sealed bearing headset is on order. They say a short spacer will be all she needs.
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