Pads for Mazda RX8 rear.
Fits: Mazda RX8 rear caliper (DB1671 / FCP1759 window).
What we’d fit.
Rear pad choice is about balance, not outright grip. Move it when you move the front, not before.
WinmaX W3
WinmaX call this their most versatile pad: sportive street through to sprint racing. It is the W-series compound we stock most of.
View this padWinmaX W5
WinmaX’s standard circuit model, and the default club racing and rally choice in the range.
View this padMove to WinmaX W5 when the front has moved up a grade and the car has gone lazy on turn-in.
This is TrackTheory’s recommendation for the Mazda RX8 rear, not manufacturer advice — a starting point based on the published figures below and what we stock, not a survey of what other competitors run. Car weight, driving style and how long your sessions are all move the answer, so tell us yours and we’ll give you a straighter one.
Same shape. Very different pads.
Every compound below bolts into the same Mazda RX8 rear caliper. What separates them is operating temperature and friction — a sprint pad that needs heat in it will feel wooden on a cold first lap, and a road-biased pad will fade before the end of a long race. Figures are the manufacturers’ own published data.
WinmaX W3
1 option · from $268 · 1 in stockWinmaX call this their most versatile pad: sportive street through to sprint racing. It is the W-series compound we stock most of.
0–650°Cµ 0.34–0.37Strong from coldstreet · trackday · sprint · hillclimbProject Mu HC-EP
1 option · from $194 · 1 in stockA street-plus-track compound, effectively HC+ tuned toward road use.
0–600°Cµ 0.43–0.58Strong from coldstreet · street+trackProject Mu D1-SPEC
1 option · from $186 · 1 in stockA drift-specific compound — high friction, low temperature ceiling, rear axle only.
0–380°Cµ 0.50–0.55Strong from colddriftCirco M207
1 option · from $495The highest peak friction and highest peak temperature Circo publish — professional circuit racing, and it needs 250°C to come in.
250–920°Cµ 0.45–0.56Needs heatcircuit · enduranceWinmaX W7
1 option · from $433The top of the W-series — professional circuit and rally use, and the highest friction WinmaX publish.
100–850°Cµ 0.48–0.53Usable from coldcircuit · rally · enduranceCirco M155
1 option · from $701An endurance compound built for consistency over long races.
200–850°Cµ 0.37–0.42Needs some heatendurance · circuitWinmaX W6.5
1 option · from $405The 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.
50–800°Cµ 0.47–0.50Usable from coldrally · sprint · hillclimb · circuitCirco M119
1 option · from $429Circo’s sprint answer: around 0.5 friction from 50°C, so it works before the pads are hot. Rally and circuit.
50–800°Cµ 0.48–0.51Usable from coldrally · circuit · sprintProject Mu PCR09
1 option · from $330Project Mu’s Club Racer. A strong trackday pad, but with a 300°C floor it is the range’s worst choice for a cold first lap.
300–800°Cµ 0.42–0.55Needs heattrackday · circuitProject Mu HC+
1 option · from $257The street-and-track all-rounder: usable from cold and rated to 800°C, which is why it suits sprints with no warm-up lap.
0–800°Cµ 0.43–0.58Strong from coldstreet · street+track · trackday · sprintWinmaX W5
1 option · from $321WinmaX’s standard circuit model, and the default club racing and rally choice in the range.
100–750°Cµ 0.40–0.43Usable from coldcircuit · trackday · sprint · rallyCirco M192
1 option · from $701An endurance rear pad developed for GT3 and GT4 machinery.
100–750°Cµ 0.37–0.41Usable from coldendurance · circuitCirco S88
1 option · from $300Street and entry-level trackday use — the step up from S83.
0–650°Cµ 0.38–0.40Strong from coldstreet · trackdayProject Mu H16-03
1 option · from $470Project Mu’s GT and TCR-level race compound.
200–650°Cµ 0.45–0.60Needs some heattrackday · circuitCirco S83
1 option · from $300Entry-level track work and rear-axle duty, usable from cold.
0–600°Cµ 0.32–0.36Strong from coldstreet · trackday · circuitCirco S85L
1 option · from $300A purpose-made low-friction rear pad for front-drive TCR cars.
0–500°Cµ 0.24–0.30Strong from coldcircuitWinmaX W1
1 option · from $227WinmaX’s street compound — quiet and low dust, and explicitly not intended for track use.
0–500°Cµ 0.29–0.32Strong from coldstreetCirco SC17
1 option · from $265The mildest pad in the Circo range — street and 4WD use.
0–490°Cµ 0.32–0.35Strong from coldstreet · 4x4Project Mu NS-C
1 option · from $147A street compound focused on low dust and low noise.
0–400°Cµ 0.34–0.38Strong from coldstreetProject Mu NS-EP
1 option · from $69Project Mu’s street pad, sold as NS400 in some markets — fade and wear resistance with a fine pedal feel.
0–400°Cµ 0.37–0.40Strong from coldstreet
Figures are the manufacturers’ own published data for each compound. Where a brand doesn’t publish a figure we say so rather than estimate it. From cold is our reading of each manufacturer’s published minimum operating temperature, not a separate rating they publish. Manufacturers test on their own equipment, so friction numbers are best compared within a brand rather than across brands. Not sure which suits your Mazda RX8 rear setup? Ask BuildBot or email us with your car, class and typical session length.
Where this caliper turns up.
WinmaX compounds (5).
Project Mu compounds (7).
Project Mu NS-C Street Brake Pads Mazda RX8 rear (R433-NS-C)
CIRCO Brakes compounds (8).
One shape, every part number.
These part numbers all share the Mazda RX8 rear backing plate. The suffix is the compound (and plate thickness where the shape comes in more than one) — ask us or BuildBot which compound suits your discipline.
| WinmaX | WMP571-{W1|W3|W5|W6.5|W7} |
| Circo | MB1162-{M119|M155|M192|M207|S83|S85L|S88|SC17} |
| Project Mu | R433-* |
| Cross-references | DBA DB1671 · Ferodo FCP1759 |