Description: Good Hydraulic Brake Performance: The Line Pulling Hydraulic Disc Brake Calipers feature a hydraulic system that provides sensitive braking and good stopping power, ensuring reliable safe across various complex cycling conditions.Disc Brake Design: Adopts a disc brake design for more even braking force. It is wear resistant, and not easily deformed, making it suitable for long term cycling and frequent braking.Stable Performance: The well designed hydraulic system is not prone to leakage, maintaining stable braking performance without worse even after prolonged use.Quality Material: Made from quality aluminum alloy materials with strong resistance and durability, this Disc Brake Calipers can withstand various harsh weather conditions and road situations while maintaining stable performance.Easy Maintenance: With its long service life, the Disc Brake Set requires only regular checks and lubricant addition to maintain optimal braking effects, reducing maintenance costs. Specification: Material: Aluminum alloyHole spacing: 51mm, 75mm Package Includes: 1 Pair ofMountain bike hydraulic disc brakes Note: Please allow slightly errors 1-2cm differences due to manual measurement.