Hope EVO GR4 Gravity Brake Silver Orange Size:Front and lower tire pressure helps The Super SLR technology and lower tire pressure helps reduce rider fatigue by smoothing out the ride over imperfect pavement and road conditions—the tire and wheel system absorbs the shaking MAX WEIGHT CAPACITY 11 kg 24 Increased lever hook for greater control and security during aggressive ridingNew dimple design improves comfort during hard braking and maintains grip in all weather conditionsNew cam design reduces free lever stroke while maintaining feel and modulation in the braking zoneMain Pivot: Roller bearingGuidance System: Two guide bushes keep the piston running smooth and straightBleeding: Bleed port added to the master cylinder body for bleeding without removing the lidCaliper Design: One piece caliper for optimal stiffness to weight ratioPistons: Larger pistons increase brake ratio for more powerStiffness: Improved caliper stiffness enhances lever feel and braking powerAdjustment Range: Increased range for better compatibility with third party hubs and frame combinationsBore Cap: New design reduces caliper width for easier packaging and improved frame compatibilityRotor Compatibility: Not compatible with vented rotors The benchmark brake for gravity and e bike use