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 aluminium
brake disc chamber by means of steel 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 which is based
on hard and abrasion-proof silicon carbide with
embedded high-strength carbon fibres. This
combination results in an enormous abrasion
resistance which allows extremely high mileages
to be achieved, while reducing 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 brake 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.