Ben Sanford wrote:
> The fork bent in the area of the crown itself \u2013 between the section
> where the steerer tube is brazed into the top of the crown and the
> section where the fork blades come up into the crown. The fork
> blades are not bent, and the hole for the brake wasn\u2019t near where the
> fork crown bent, so it wasn\u2019t weakened by the drilling \u2013 although
> this one was factory drilled.
What type of crown was this? We had some trouble like this on the early Trek 170 frames (Reynolds 753) that used a modified Ishiwata SCM crown:
http://www.os2.dhs.org/
The stock crown came with a flat front and rear; at Trek this was milled away between the steer tube and blades to produce the effect in the picture above. A pretty crown, but we took to calling it the "frame-saver" crown since it could be counted on to bend on frontal impact long before the frame would. :-)
--
John Thompson (john@os2.dhs.org)
Appleton WI USA