Alcon CAR89 25mm Brake Pad Set (Project Mu MR-05)

The right pad compound can completely change how an Alcon brake kit feels on track. The Project Mu MR-05 compound in the 25mm CAR89 pad shape is built for drivers who want a stronger, more confident pedal with the kind of consistency that matters once speeds and temperatures start climbing. If your car is already on an Alcon CAR89 based setup, this is the kind of pad upgrade that helps unlock more of what the caliper and rotor package are capable of.

Why we like the MR-05

• Track focused compound designed for high performance driving and repeated high energy stops
• CAR89 25mm pad shape fits a wide range of Alcon motorsport and big brake applications
• Strong, confidence inspiring bite with the modulation needed to work at the limit
• Built to maintain consistency as brake temperatures rise through a session
• A great option for drivers who want more support from the brake system without changing calipers or rotors
• Pairs well with serious street, HPDE and dedicated track day setups depending on overall vehicle use

Built for Alcon motorsport hardware

The CAR89 25mm shape is a known motorsport pad profile used in a variety of Alcon applications, which makes it a strong foundation for performance compounds like the MR-05. That matters because a pad is only as good as the system it is working in. With a proper Alcon caliper, rigid bridge design and quality floating rotor package, a pad like this has the support it needs to deliver a consistent pedal and usable feedback lap after lap.

Fitment and details

This listing is for the 25mm CAR89 pad shape in Project Mu’s MR-05 compound. It is intended for compatible Alcon calipers using the CAR89 25mm pad profile. If you are unsure on fitment, always confirm your existing pad shape before ordering, especially on custom or mixed-component brake packages.

Why pad choice matters

One of the best parts about a serious brake system is being able to tailor it to how the car is actually used. A good pad compound can change initial bite, release characteristics, temperature behavior and how confident the car feels deep into a session. For drivers already running Alcon hardware, the MR-05 gives you another way to fine tune the system around your tires, speed and driving style.