// Increased lever hook for greater control and security during aggressive riding // New dimple design improves comfort during hard braking and retains grip in all weather conditions // New cam design decreases the free lever stroke while maintaining the feel and modulation in the braking zone // Roller bearing main pivot // 2 guide bushes keep the piston running perfectly smooth and straight // Bleed port added to the master cylinder body enables bleeding without removing the lid // One-piece caliper design for the best stiffness to weight ratio // Larger pistons increase ratio of the brake for more power // Improved caliper stiffness helps to improve lever feel and increase power // Larger adjustment range for better compatibility with third party hubs and frame combinations // New bore cap design decreases overall width of the caliper for easier packaging and better frame compatibility // GR4's are not compatible with Vented rotors. // Available in Black or Silver with Black, Silver, Smoke, Blue, Red, Purple or Orange accents.
