11/16" master cylinder?

Discussion in 'Softail Models' started by twincam2011, Mar 15, 2009.

  1. twincam2011

    twincam2011 New Member

    On a 2001 fatboy with single front disc is it possible{ this includes wise and safe } to use an 11/16" master cylinder in place of the 9/16" stock master cylinder? THANK YOU!
  2. glider

    glider Veteran Member

    It will work but the lever pull will not be what it is supposed to be. You'll end up with a sensitive brake more than the 9/16" bore. It's moving more fluid than the 9/16 piston does. Check the fitting size too.

    9/16" bore is for later front single caliper 84 up
    11/16" bore for later dual disc dressers like FLHR