The Easy Bracket Saddlebag Bolt-on Support Systems allows you to make your saddlebags quick detachable to attach securely to your 1996-2005 Harley Davidson Dyna with no backrest or a rigid mount backrest. The center to center hole measurement is 9 5/16". If you have a detachable backrest or want to use the center to center holes that are 10 3/8" see the DNA-L1. The Easy Bracket kits include both left and right side brackets with four (4) stainless steel docking points to mount to the motorcycle fender rail, and all necessary hardware to mount the brackets to your saddlebags with only basic tools. Turn signal relocation is necessary on all Dynas except some of the the 1996-2005 Wide Glides. The Wide Glides that do not require turn signal relocation have the turn signal in the 3rd hole and it is about 2" behind the 2nd hole. If the Dyna Wide Glide has a detachable backrest the backrest covers the holes on the strut and the Easy Brackets do NOT work. Wide Angle Saddlebags must be used with this Easy Bracket.