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Lugged fork unicorn

Old 05-14-21, 07:19 AM
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eyemkeith
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Lugged fork unicorn

Hi all.

I'd love to replace the unicrown fork on my old bridgestone with a lugged fork. But it seems looking for a 1-inch, threaded fork with canti bosses for a 26'' wheel is akin to looking for a unicorn. Is there any manufacturer that produces such an animal?
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Old 05-14-21, 07:42 AM
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maybe this?
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Old 05-14-21, 08:02 AM
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I had seen that. And it is all kinds of pretty. I'm not smart enough to know if that would work with my 26'' wheels. There are plenty of smart people here I hope can shed some insight.

Of course, I could always decide to 650b the old gal. Can't say that doesn't hold some appeal.
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Old 05-14-21, 08:24 AM
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Most of the early rigid mountain bikes had 1” threaded forks with classic fork crowns, 26” wheels and cantilever brakes. They can be found on eBay and CL, although you may need to buy a whole frame set to get the fork. I have seen NOS examples of the forks alone go for anywhere between $50 to $150 on eBay.
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Old 05-14-21, 08:29 AM
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This is an option if you want to run a disc brake:

https://crustbikes.com/collections/f...romanceur-fork
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Old 05-14-21, 09:38 AM
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I have one that's a nice fork of unknown provenance but in good shape, 99% sure it's for 26" but can confirm this on Sunday. It's painted orange. I will try to remember to take some pix. Actually I will just try to remember ANYthing by Sunday!
Also I'm PRETTY sure it's a 1" steerer but not guaranteed, and how much steerer length do you need?
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Old 05-14-21, 11:03 AM
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Thanks, mister! Good question on the fork length. I wish I had a good answer, other than "what the old gal came with in 1992." lol. I'll see if I can take 'er apart before Sunday. Much appreciated.
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Old 05-14-21, 11:27 AM
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I don't know about unicorn... but here's a lugged fork, unicrown:

1987 Schwinn High Sierra by Dave The Golden Boy, on Flickr

High Sierra Fillet Brazed by Dave The Golden Boy, on Flickr
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Commence to jigglin’ huh?!?!

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Old 05-14-21, 03:22 PM
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Wow. That’s beautiful!
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Old 05-14-21, 04:52 PM
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Originally Posted by eyemkeith View Post
Thanks, mister! Good question on the fork length. I wish I had a good answer, other than "what the old gal came with in 1992." lol. I'll see if I can take 'er apart before Sunday. Much appreciated.
You should be able to get a "close enough" measurement without taking it apart: just measure from the top of the forkcrown (close as you can) up the head tube to about where the threaded steerer top should be inside the top-cap. Pretty safe to just go to the top of that cap and subtract a few MM. If you have to: take a series of shorter (but accurate) measures and add them up. Repeat a few times and average them if you get a "range"
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Old 05-14-21, 05:37 PM
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There were some nice biplane forks on Norco Bigfoots (and others)varound '85. Not as elegant as the MB-1's but in the same vernacular. '84 and earlier had .883 steerers though.
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Old 05-17-21, 10:08 AM
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Sorry to report: you're still on the Unicorn hunt, cause I was wrong on multiple counts about the fork I have stashed away, It's not 1" (but 1.125") and it's not threaded, either (threadless) but...it IS orange!
Sorry my memory is so unreliable but, Happy Hunting!
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Old 05-21-21, 07:13 PM
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Thanks for checking, mister. I really appreciate it.
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Old 05-21-21, 07:22 PM
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fyi, keep in mind the axle to crown height. unicrown's are generally taller than a lugged crown fork. this would throw the front end downward on your bike if the lugged fork is shorter. you may find one that isn't shorter (good luck!), but it's something to consider
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