The GiroDisc slotted ring sized 380x32mm with 10 pin holes and a 52mm annulus is supplied as a slotted outer ring for compatible rotor hats. The dimensions and hole pattern indicate the intended rotor mounting compatibility. The slotted surface supports pad cleaning and gas escape to help maintain consistent braking under repeated stops or spirited use when fitted to matching hardware.
GiroDisc 380x32mm 10 Pin Holes 52mm Annulus Slotted Rings