The Hope GR4 is a four-piston gravity brake for the most demanding applications delivering maximum power with no compromise. Super-smooth lever action and premium construction make controlling that power feel natural. The benchmark brake for gravity and e-bike use.
Increased lever hook provides greater control and security during aggressive riding while a 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
Features a roller bearing main pivot and 2 guide bushes to keep the piston running perfectly smooth and straight
One-piece caliper design for the best stiffness to weight ratio that results in improved lever feel and increased power (NOTE: GR4's are not compatible with vented rotors)
Larger pistons increase the ratio of the brake for more power
New bore cap design decreases overall width of the caliper for easier packaging and better frame compatibility
Larger adjustment range for better compatibility with third party hubs and frame combinations
Bleed port added to the master cylinder body enables bleeding without removing the lid
