The compound
Circo M119.
A carbon-metallic compound built for rally and circuit work, and the standout in the Circo range for short events. It publishes 0.48–0.51 friction from a 50°C floor — near race-compound bite that is already working on a cold first lap. Circo describe it as more forgiving to drive than M127.
Operating range50–800°C
Friction µ0.48–0.51
Pad life'Very low wear rate'. No numeric figure published.
Rotor weargentle
Cross-brand equivalents
Run something similar.
These are the compounds we stock for the Mazda RX8 rear whose published friction and operating temperature come closest to Circo M119. They are a starting point for switching brands — not a guarantee of identical feel, because each manufacturer measures friction on their own equipment.
Project Mu PCR09
Very close300–800°Cµ 0.42–0.55
Project Mu’s Club Racer. A strong trackday pad, but with a 300°C floor it is the range’s worst choice for a cold first lap.
Matched on published friction and operating temperature.
From $330Project Mu H16-03
Very close200–650°Cµ 0.45–0.60
Project Mu’s GT and TCR-level race compound.
Matched on published friction and operating temperature.
Fits the same caliper
More pads for the Mazda RX8 rear.
Pairs well with
