The Shimano Zee M640 Disc Brake comes with a Servo-Wave brake lever and 4-piston ceramic disc brake caliper. The hydraulic disc brake is tuned using Shimano’s high-power hose and shorter lever blade for optimal system stiffness. This Shimano Zee disc brake has improved ergonomics via a new pivot location and dimpled surface. The Ice-Tech brake pad and rotor options reduce heat in the system for better performance on the long descents.
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