Source: Zimmermann announcement
For more than 10 years, Zimmermann has offered its Formula:Z compound brake discs. In 2017 it added the Formula:F compound discs to its range. This disc, with a nonpositive connection, is the equivalent to BMWs latest Formula F series brake disc-development.
One advantage of compound discs is weight reduction which is achieved by the use of aluminum for the disc hub instead of a casted hub. This modification leads to a better braking performance. The enhanced thermal conductivity derives from the use of high carbon in the casting quality of the friction ring. The environmental benefits are lower pollution.
Formula 1 Innovations: the Carbon Brake Revolution
Better driving experience thanks to compound discs
The compound disc also proves to be an advantage for accelerating and handling, thanks to lower unsprung mass of the compound discs. The lower the proportion is between the unsprung mass and the sprung mass, the lower are the variations of wheel load and the better the driving experience.
Tires, wheels, the brake system, axle components, wheel bearings, springs, shock absorbers as well as anti-roll bar rank among unsprung mass. In comparison to the car body, that is spring mounted, these parts operate directly towards the road.
Characteristics like braking performance, tracking stability and handling are significant not only for high-speed conditions. These types of lightweight constructions – including compound discs – originally developed for racing purposes can also provide an excellent brake and driving performance for street use.
Long durability at highest breaking performance
All compound brake discs of the Formula:F line consist of an aluminum hub and a cast friction ring. This leads to a weight reduction of up to 15 percent and subsequent improved barking performance and reduced pollution.
The use of high-carbon casting leads to an enhanced thermal conductivity as well as to a long durability at high stress. Because of the comparability to the brake discs of the original equipment manufacturer and the ECE R 90 approval of the entire range, there is no modification required before fitment in place of the BMW F series.
Coat Z: rust prevention improves visual appearance
All Formula:F brake discs will be additionally protected with Coat-Z: an anti-corrosion coating consisting of a heat-resisting aluminum lacquer.