For the BMW brembo 6-pot sport (F10-F13 M5 and M6 front axle and the M2, M3, M4 400mm brakes of the ceramic brakes, M-perf brakes or the Competition and GTS) front axle brakes.
N39S
N39S shares many features with N35S, but has a step higher initial bite and better performance while the modulation is still very good. This compound also provides a faster response and builds up friction exceptionally well from cold temperatures. N39S has excellent
temperature resistance and will exhibit low brake pad wear.
Specifications
Friction: 0.42-0.52 µ
Heat levels: 0-850°C
Blocks made for pure circuit use, but due to the high temperatures they can also be used on the street.
Entry process:
Make 10 hard stops from 100 km/h to a standstill and quickly accelerate again to 100 km/h.
The brakes must reach a temperature of 350 degrees in the discs or more to complete the process, otherwise more stops are required.
If this is not possible, 3 laps at about 80% pace on the circuit can also suffice, then check the temperature of the discs.
Only after the running-in procedure can the blocks provide optimal performance.
These brake pads can squeak (to prevent this, the edges of the pads can be rounded).
When applying to used discs, we recommend first inspecting them for problems and then rough sanding (80-120 grit sandpaper) to remove old brake pad residue.
Other compounds, models and parts also available.