GMA brake disc is cast iron with an aluminum center.
XL 1979 - 1999 Notes:
With the floating brake disc the braking surface is relatively loose so that it can move around and become in alignment with the brake pads.Part Number: 23-9936Manufacturer: V-TWIN MANUFACTURINGOEM Cross Reference:
Height: 1 Length: 13 Width: 13Weight: 4*All measurements are displayed in inches and pounds.