108mm Brake Caliper Mounting Bracket Adapter for Harley Davidson controls you can check this link

you can check this link and see the details

Finished with Chrome Plating

Fitment: Fits all the models of  Harley Davidson Softail Dyna Road King with 1

The installation position may be not the same for the different models

108mm Brake Caliper Mounting Bracket Adapter for Harley Davidson controls you can check this linkItem No303025 Made of 6061 T6 aluminum. Distance from center to center is 108. 00 mm. Worked with 00 later aftermater radial brake calipers. (Except 18 Later Street Bob, Fat Boy). Compatible with only 11. 5", 11. 8" brake rotors. Packing is with 2 bolts and 4 spacers. ( The spacers are for free. If the washers are not workable with your bike, please buy the different kinds from other link.) Sold in Each. ( If your brake rotors is dual, please buy 2