John wrote: "After you've trimmed the steer tube, take a flat file to the back of the tube to create the flat you need."
File down the back side of the steerer tube BEFORE you remove the threaded adjusting cone you had used as a saw guide. That adjusting cup will clean the threads post filing.
Tom Martin Oakland CA
-----Original Message----- From: John Thompson [mailto:johndthompson@gmail.com] Sent: Tuesday, February 19, 2008 6:24 AM To: classicrendezvous@bikelist.org Subject: Re: [CR]Trimming a steer tube - need help
Scott Edrington wrote:
> Any guidance on trimming a steer tube?
>
> I have a NOS frame that I installed a headset on today and now need to
> sh orten the steer tube by ~ 1/2 inch.
To do this properly you'll need to remove the fork from the frame. Mark
point you need to trim and take a couple old threaded cups to use as a saw
guide. Thread one down just past the trim point and the other just above the
trim point, leaving just enough space for the saw blade.
> Also, I have a headset spacer that requires the steer tube to have a
> flat spot milled into it. I hate to grind out the flat spot in the
> spacer sin ce it is a rare headset and would like to keep it as
> original as possible
After you've trimmed the steer tube, take a flat file to the back of the tube to create the flat you need.
--
-John Thompson (john@os2.dhs.org) Appleton WI USA
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