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The Club Racer, and Project Mu’s trackday compound. It runs 300–800°C with 0.42–0.55 friction, and Project Mu state plainly that it is not for street use. The 300°C floor is the highest of anything we stock, so it is a strong pad once hot and the worst choice in the range for a cold first lap.
These are the compounds we stock for the Wilwood Superlite 7320 whose published friction and operating temperature come closest to Project Mu PCR09. They are a starting point for switching brands — not a guarantee of identical feel, because each manufacturer measures friction on their own equipment.
WinmaX W6.5
Very closeThe standout for sprints and hillclimbs: close to 0.5 friction from a 50°C floor, so it bites on lap one. WinmaX call it their best rally pad.
Matched on published friction and operating temperature.
From $494Circo M119
Very closeCirco’s sprint answer: around 0.5 friction from 50°C, so it works before the pads are hot. Rally and circuit.
“The bite is there from the first stop, and it stays there.”
Matched on published friction and operating temperature.
Circo M127
Very closeSprint and time-attack. More outright bite than M119, but it wants heat in it first.
Matched on published friction and operating temperature.
From $508