Strong initial bite and honest modulation for club sprint and circuit work.
Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
Cheaper pads in this caliper family tend to fade under sustained lap loads or go wooden when cold — RC09 is engineered to stay consistent across a full sprint session. Project Mu's compound tolerances are tighter than most aftermarket alternatives, which means the bite point you find on lap one is still there on lap ten. For drivers who need a predictable pedal without stepping up to a full race compound, RC09 sits in the right place.
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 Alcon B-type / AP D49 / Brembo B13 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 $494 · in stockWinmaX W5
CloseWinmaX’s standard circuit model, and the default club racing and rally choice in the range.
“The bite is there from the first stop, and it stays there.”
Matched on published friction and operating temperature.