These brackets bolt to the stock handlebar clamp on 1995 to 2005 XL 883 Sportster and 1995 thru 2004 FXD Super Glides and 1996 thru 2013 Road Kings. Also fits 2004 thru 2017 Dyna models when installed in conjunction of an aftermarket handlebar clamp. Takes all speedo's and tachos with 3 1/2" (89mm) housing, reffered by Harley as 4" gauges. Has five control light holes.