The racers' choice, 105 brake callipers come in a compact and lightweight design for high performance Dual-pivot calliper brake with super SLR-EV design for quick linear response, increased rigidity and improved braking power Must be used in conjunction with ST-5800, ST-6800 or ST-9000 STIs for correct leverage ratio Enhanced brake arch proportions give a quicker linear response and increased power 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 and easy alignment Lightweight aluminium construction, with an anodised finish to preserve the good looks Compatible with 28c tyres 49 mm drop