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 Mazda RX8 rear 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.
Project Mu NS-EP
Very close0–400°Cµ 0.37–0.40
Project Mu’s street pad, sold as NS400 in some markets — fade and wear resistance with a fine pedal feel.
Matched on published friction and operating temperature.
From $69Fits the same caliper
More pads for the Mazda RX8 rear.
Pairs well with
