Ultegra components offer an ideal balance of light weight & stiffness, making it the perfect choice for both enthusiast & competitive riders. Low profile aerodynamic direct mount Super SLR-EV Dual-Pivot design provides superior brake performance & light action. Must be used in conjunction with super SLR levers for correct leverage ratio. Enhanced brake arch proportions give a quicker linear response & increased power. Can be used on forks with direct mounts. Low profile outer cable stop position improves cable routing for reduced friction. Cartridge brake shoes for easy replacement. Convex washers on the brake shoes offer toe-in brake adjustment & easy alignment. Lightweight aluminium construction, with an anodised finish to preserve the good looks. Added clearance for compatibility with 28C tire size.