Pads for Brembo B09 4-pot (99.8mm).
Fits: Brembo B09 99.8mm pad 4-pot.
Same shape. Very different pads.
Every compound below bolts into the same Brembo B09 4-pot (99.8mm) 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 W7
1 option · from $508The 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 · enduranceWinmaX W6.5
1 option · from $494The 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 · circuitWinmaX W5
1 option · from $405WinmaX’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 · rally
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 Brembo B09 4-pot (99.8mm) setup? Ask BuildBot or email us with your car, class and typical session length.
WinmaX compounds (3).
One shape, every part number.
These part numbers all share the Brembo B09 4-pot (99.8mm) 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 | WMP895-16-W7 · WMP895-20-{W5|W6.5} |