CNC machined from aircraft heated aluminum alloy 5/8 in diameter bore produces more pressure and increases stopping power Designed to work with the dual piston GMA and other aftermarket dual piston calipers Note - Not recommended for use with original Harley-Davidson brake calipers.

This product can be used with Model Part# Harley-Davidson FL 79-82 MCHD-1 Harley-Davidson FX 80-83 MCHD-1 Harley-Davidson FXWG 80-82 MCHD-1 Harley-Davidson XL (Kelsey-Hayes Spacing) 80-81 MCHD-1 Harley-Davidson FL 58-79 MCHD-2 Harley-Davidson FX (Wagner Hole Spacing) 73-79 MCHD-2