The compound
Circo S88.
The step up from S83 for street and entry-level trackday use, with more friction and a 650°C ceiling. Still usable from ambient, so it suits a car that drives to the circuit.
Operating range0–650°C
Friction µ0.38–0.40
Pad lifeSame as above - rating bar only, no number published.
Cross-brand equivalents
Run something similar.
These are the compounds we stock for the AP CP5200 family / Brembo 4-pot B52 (D50) whose published friction and operating temperature come closest to Circo S88. They are a starting point for switching brands — not a guarantee of identical feel, because each manufacturer measures friction on their own equipment.
WinmaX W4
Very close50–700°Cµ 0.37–0.40
Sprint and entry-level motorsport, with a low enough floor to still behave on a cold first lap.
Matched on published friction and operating temperature.
From $376Compare every compound for the AP CP5200 family / Brembo 4-pot B52 (D50)
Fits the same caliper
More pads for the AP CP5200 family / Brembo 4-pot B52 (D50).
Pairs well with
