Project Mu Disc Brake Rotor

Project Mu Disc Brake Rotors: Track-Proven Stopping Power

When it comes to high-performance braking hardware, few names carry the credibility of Project Mu. Since 1988, Project Mu has been pushing the boundaries of braking technology to offer high-end solutions for a wide range of vehicles across the globe. Their disc brake rotors represent the same racing-bred philosophy that has made the brand legendary in Japanese motorsport — engineered to perform under the harshest thermal and mechanical demands a driver can impose.

A Rotor Lineup Built for Every Level of Performance

Project Mu offers a well-structured rotor lineup that spans everything from spirited street driving to dedicated circuit and endurance competition. Key lines include:

• SCR (Street Circuit Rotor): Developed by Project Mu using FC cast-iron with improved heat stability and durability, the SCR features fins with an original radiating shape that increases heat release — ideal for a wide range of driving scenarios from the street to the circuit.
• SCR Pure Plus 6: Designed with curved slits that provide a greater cleaning effect than straight slits and improve initial braking, the SCR Pure Plus 6 is highly recommended for those who mainly do on-street "sport" driving. Made of FC cast-iron and supporting temperatures up to 600°C, the extra curved slits enhance cleaning and ventilation effects for additional cooling and braking power.
• SCR-Pro: The SCR-Pro rotors feature a two-piece design and slotted discs for superior braking performance even in circuit conditions. This makes them a natural step up for drivers who spend regular time on track.
• SCR-GT: A floating-design rotor built for maximum heat management in demanding motorsport environments, the SCR-GT is designed for high braking performance rather than wear-resistance and silence.
• Racing Disc Rotor: Developed through repeated action-testing on the track in Super Taikyu and SUPER GT races, these rotors are made from a new material that has received high praise and earned trust in a broad range of competition.

Materials and Engineering That Make the Difference

Manufactured using the highest quality FC cast-iron, Project Mu brake rotors deliver stable braking, superior cooling efficiency, and improved crack-resistance. The brand also offers a high-quality Made-in-Japan one-piece rotor at competitive value, as well as a lightweight two-piece rotor option for those seeking weight reduction on track-focused builds. Bell housings on two-piece designs are available with black or Hard Tufram alumite coating for added corrosion resistance and durability.

Designed to Work with the Full Project Mu Braking System

Project Mu rotors are engineered with the brand's complete braking ecosystem in mind. The SCR is designed to be compatible with a wide array of sport brake pads, and whether on the street or track, it has been proven reliable under diverse driving conditions including race competition — affording the driver the ability to maintain controlled and predictable stopping power. For the best results, pairing Project Mu rotors with the brand's own pad compounds ensures the thermal and friction profiles are matched from the factory.

Whether you are building a daily driver with a performance edge or prepping a dedicated time-attack machine, Project Mu's disc brake rotor lineup offers a purpose-built solution. Explore the full range of Project Mu products or browse all disc brake rotors to find the right fit for your vehicle.