Polisport MX Disc Protector can be installed in only 4 minutes, without the need to disassemble the wheel, unlike the conventional disc guards. The part offers extended protection of the brake disc and the bottom of the fork, using two different parts to do it. The Bottom Fork Guard is model specific and can be used individually. If you want to protect the Brake Disc, just add the Universal plastic part of the disc protection, quickly and easily.