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Builder's Corner Restoration and preservation. Keep them running in perfect shape. What size is your bottom bracket?

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Old January 25th, 2019, 11:21 AM   #1
Retro Dude
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Default Box Crown Fork markings

Has any one seen similar markings on the steerer tube of their forks?

Not sure if it could be serial number/date code/lot code/etc.
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Old January 26th, 2019, 6:15 PM   #2
mainlyfats
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Quote:
Originally Posted by Retro Dude View Post
Has any one seen similar markings on the steerer tube of their forks?

Not sure if it could be serial number/date code/lot code/etc.
In the absence of anyone else chiming in, I'm going to say that those markings belong to the steerer tube manufacturer or wholesaler, not the assembled fork. I think we've had it confirmed before on this site that fork production was not recorded like frames were and that there definitely is no fork book.
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Old March 21st, 2019, 3:51 PM   #3
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I've got an extra one - I'll take a look when I can.
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Old April 1st, 2019, 11:17 AM   #4
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The box crown forks used steerer tubes manufactured by Columbus that have rifling on the inside in the area where the box crown attaches. Very similar to a gun barrel. Supposedly increased rigidity without a big weight penalty.

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Old April 1st, 2019, 7:12 PM   #5
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Thanks Scott
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Old May 29th, 2019, 7:23 PM   #6
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My fork doesnít have letters just a small number 4. Iíll post a photo if possible.
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