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The GiroDisc slotted ring sized 328x28mm with 10 pin holes and a 54mm annulus is a specified replacement ring offering a slotted braking face. The dimensional callout and pin-hole pattern indicate fitment to compatible rotor hats; the slots help clear pad debris and gas to sustain consistent braking. This ring is supplied for applications matching the listed diameter, thickness and annulus.
GiroDisc 328x28mm 10 Pin Holes 54mm Annulus Slotted Rings
