This fork cup has a built in fork stop that cleans up frame neck area for that sanitary custom look. To prevent the cup from twisting in the frame a 3/16" I.D. hole is provided in the fork cup so the frame neck can be drilled by the technician. A 3/16" O.D. staking pin is also included. This fork steel fork cup is designed to be used with Big Twin frames with removable fork cups
Fitment
OE style FXR or Dyna style lower fork bracket & also fits custom lower fork brackets with upriight fork stop nubs