Presenting front brake caliper guard from our premium brand Legundary Custom. The product featured here is made with mild steel and comes in a jet black finish. What is a brake caliper? A caliper is part of the disc brake system. The brake caliper houses your motorcycle’s brake pads and pistons. Its job is to slow the motorcycle’s wheels by creating friction with the brake rotors. Our product gives protection to the caliper while lighter off-roading.