Specifications
297x198_Olbia_Fas09_RZ.indd 36 14.03.12 18:42
36 Brake systems
The standard 18-inch high-performance brake
system takes a powerful hold with its 8-piston
fixed callipers on the front axle. A single-piston
floating calliper is used on the rear 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 increase the
brake discs’ performance. The use of aluminium
and the characteristic geometry of the friction
rings reduce the weight of the brake discs,
thus improving the balance of the unsprung
masses.
The optional 19-inch ceramic brake* with
6-piston fixed callipers at the front is available
for even more demanding loads. In this brake
system, the brake discs on the front axle are
made of a carbon-fibre reinforced ceramic
material. This is based on hard and abrasion-
proof silicon carbide with high-strength carbon
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.
RS4_Avant_Fas18_2012_03.indd 36RS4_Avant_Fas18_2012_03.indd 36 03.05.12 15:2003.05.12 15:20