Brembo PISTA D-Bobbin Semi-Floating Mounting Hardware Kit. This premium hardware pack is specifically engineered for high-performance racing applications, designed to secure the brake ring to the bell (hat) while allowing for controlled radial and axial thermal expansion. This semi-floating system prevents disc deformation and ensures consistent pedal feel under extreme thermal stress. The kit includes: 10x Shoulder Bolts (D-Bobbin specific), 10x Self-locking Nuts, 10x Floating Washers, and 10x Anti-rattle Springs. Technical specs: Designed for 6mm flange thickness, 10-hole mounting pattern, Pista Series compatible.