How it all Works
When you squeeze a brake lever (past the regenerative braking-only stage), hydraulic fluid (DOT 3 or 4 brake fluid, the same as used in most cars and motorcycles) is forced by the master cylinder through the brake line and into the brake caliper via the ABS damper valve, thus forcing the caliper’s piston(s) to push the brake pads into contact with the brake rotor, causing friction that turns kinetic energy into heat and slow the bike.