Technical data

32 Brake systems
The standard 19-inch RS brake system takes a
powerful hold with its 6-piston fixed callipers on
the front axle. The wave brake discs comprise a
cast friction ring with a wave-shaped outer contour
which is connected to the brake disc chamber by
means of aluminium pins. This so-called floating
mounting ensures that the friction ring remains
tension-free to a major extent, improving stability
under high temperature loads. In addition, the
axial perforation and cooling channels for internal
ventilation improve the performance of the brake
discs. The use of aluminium and the characteristic
geometry of the friction rings reduce the weight
of the brake discs, thus improving the balance of
unsprung masses.
The optional 20-inch ceramic brake* is available
for even more demanding loads. With this brake
system, the brake discs are made of a carbon-
fibre reinforced ceramic material. This is based
on hard and abrasion-proof silicon carbide with
high-strength carbon fibres embedded. This
combination results in an enormous abrasion
resistance which allows extremely high mileages
to be achieved and at the same time reduces
sensitivity to high thermal loads. In addition, the
material is lighter than steel discs.
Nothing can stop
a top athlete.
Except for a top brake system.
20-inch ceramic brake*
19-inch RS braking system
The brake discs on the front axle
have a diameter of 420 mm.
The high-gloss anthracite painted
brake callipers bear the
“Audi ceramic” logo.
The brake discs on the front axle
have a diameter of 390 mm and a
wave-shaped outer contour.
The high-gloss black painted brake
callipers bear the RS logo.
* Please consult your Audi partner or national Audi website to find out more about the special features of the ceramic brake.