A brake caliper for e‑bike is the essential braking component of an electric bicycle’s disc brake system. It mounts to the frame or fork and holds the brake pads and pistons (in hydraulic systems) or mechanical arms (in cable‑actuated systems). When the rider applies the brake lever, the caliper presses the pads against the spinning brake rotor, creating friction that slows and stops the e‑bike. High‑quality calipers are designed for consistent stopping power, durability across weather conditions, and low maintenance — crucial for safe electric bike performance.