Box Crown Fork markings

Retro Dude · January 25th, 2019, 12:21 PM

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.

mainlyfats · January 26th, 2019, 7:15 PM

Quote:

Originally Posted by Retro Dude

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.

AB · March 21st, 2019, 4:51 PM

I've got an extra one - I'll take a look when I can.

I-ROBOT · April 1st, 2019, 12:17 PM

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.

Scott

Retro Dude · April 1st, 2019, 8:12 PM

Thanks Scott

AB · May 29th, 2019, 8:23 PM

My fork doesn’t have letters just a small number 4. I’ll post a photo if possible.

April 1st, 2019, 8:12 PM	#5
Retro Dude Senior Member Join Date: September 5th, 2011 Location: Clay Posts: 510	Thanks Scott __________________ inFATuated

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March 21st, 2019, 4:51 PM	#3
AB Senior Member Join Date: July 15th, 2005 Location: PA Posts: 308	I've got an extra one - I'll take a look when I can.

April 1st, 2019, 12:17 PM	#4
I-ROBOT Senior Member Join Date: January 7th, 2007 Location: Hudson, MA Posts: 426	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. Scott

May 29th, 2019, 8:23 PM	#6
AB Senior Member Join Date: July 15th, 2005 Location: PA Posts: 308	My fork doesn’t have letters just a small number 4. I’ll post a photo if possible.

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