Fitment
Will this fit?
Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
The compound
Circo S83.
An entry-level track and rear-axle compound that works from cold. It is a common choice for the rear of a car running something far more aggressive on the front, where matching the front pad would simply lock the rear.
Operating range0–600°C
Friction µ0.32–0.36
Pad life'Good pad wear' (MSB catalogue). No numeric figure published.
Cross-brand equivalents
Run something similar.
These are the compounds we stock for the Wilwood Superlite 7320 whose published friction and operating temperature come closest to Circo S83. 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 H21
Partial match200–850°C
Circuit and endurance racing. Project Mu rate it as kind to the rotor with long pad life.
Matched on published operating temperature only — one of the two brands doesn’t publish a friction figure, so this is a weaker comparison.
From $525Fits the same caliper
More pads for the Wilwood Superlite 7320.
Pairs well with
