Advertise on Bikeforums.net



User Tag List

Results 1 to 4 of 4
  1. #1
    Oddjob Cassanova gutbucket's Avatar
    Join Date
    Dec 2007
    Location
    Stoney Creek, Ontario, Canada
    My Bikes
    2005 Specialized Sirrus Hybrid, Unpedigreed steel frame fixie conversion (Force Disorder Pump), Pugeot UO9 fixed conversion (Red Menace). Lots of parts scattered about garage.
    Posts
    80
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    drilling tops of fork crown of lugged steel fork

    Mounting a rack to a lugged steel fork and looking for options that will not interfere with brake mounting or operation. The shoulders on the fork crown are pretty wide and the fork itself is quite beefy so I was wondering if it was advisable to drill the crown to accept threaded inserts.

    Thanks,

    Dave
    "I n'er go up just for the money,
    I n'er go halfway..."

  2. #2
    Banned
    Join Date
    Aug 2005
    Posts
    5,117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hard to say, not enough detail. Is paint a consideration, will you be making a custom rack? Top or sides, sloped or level? How much cutout?

    If paint isn't a concern, then I would put them in the usual place on the side of the fork. At least for touring, being able to use stock gear in a pinch is an advantage so standard positions with the workaround in your custom rack would make sense.

    One trick I use a lot, I invented this (probably for the 1000th time), is to place a threaded insert under/inside the steering tube. This works in retrofit no tools situations, because one can whittle and glue something in there, or you can do it all fancy do a very neat job all metal. It basically works like a crown attachment point except if you already have that filled for brakes, or you want a slick fender point.

    Another option is to braze barrels anywhere.

  3. #3
    Randomhead
    Join Date
    Aug 2008
    Location
    Happy Valley, Pennsylvania
    Posts
    12,501
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    the part of the fork crown that is above the fork blade is not contributing much at all to the strength of the fork. Framebuilders do this all the time, but they usually put water bottle bosses in to make it cleaner.

  4. #4
    Oddjob Cassanova gutbucket's Avatar
    Join Date
    Dec 2007
    Location
    Stoney Creek, Ontario, Canada
    My Bikes
    2005 Specialized Sirrus Hybrid, Unpedigreed steel frame fixie conversion (Force Disorder Pump), Pugeot UO9 fixed conversion (Red Menace). Lots of parts scattered about garage.
    Posts
    80
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The insert I'm using is available at Home Despot in Canada. Its made by Paulin and its called 'Sert-A-Nut' . Designed to go in blind holes but works in drill thru applications as well. Thread size is #10-24 and the hole I would have to drill would be 9/32". I've seen bosses brazed in this same place but I don't have access to a builder.
    "I n'er go up just for the money,
    I n'er go halfway..."

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •