Dual Caliper Bracket - 06+ Dyna - American SuspensionMachined from 2 solid blocks of 6061 aircraft grade aluminum, allows the mounting of 2 B 62 monoblock radial calipers on the rear of 2006 and later dynas (touring early model m8 softail coming soon) Calipers can be "linked" off of the rear brake lever ( can also use an inline proportioning valve to dial down the brake pressure of trailing caliper) or can run a separate brake line to a hand brake lever off of the handlebars. Allows you to control rear