Swiss Stop Catalyst disc rotor

Engineered to set a new standard

In early 2015, the SwissStop engineering team conducted a series of laboratory tests on bicycle brake disc rotors. Next, they created digital models of these rotors and simulated the same test environments using advanced software. A comparison of the data verified that the simulations were accurate and effective, giving the engineers confidence to proceed with creating an array of digital prototypes to thoroughly test and evaluate. Heat transfer within the design concepts was studied extensively using engineering simulation software. The relationships between convection, radiation, surface area and weight were used to determine the optimal design to maximize heat dissipation and strength while minimizing weight. The structure of each design was evaluated under braking forces ranging from typical hand pressure up to theoretical maximums. Critical pressure points in the structure were identified in order to maximize the strength and stiffness of the rotor.

The final design was confirmed and visualized with further thermal and structural simulations. A two piece design consisting of a 7075-T6 aluminum alloy spider and SUS410 stainless steel brake track was chosen to balance light weight with reliable thermal management and structural performance. Vibrations are minimized by the geometry of the brake pad contact area.

Features

Power and durability
Powerful braking and high durability, available in four sizes for applications including road, cyclocross, cross country and downhill.

Accepted by the UCI for road competition
The perimeter edge of the Catalyst brake rotor does not contain any 90 degree edges.

Wear out indicators
Small divots on the surface show when it is time to replace the rotor.

Real weight: 113 g (140), 131 g (160), 159 g (180), 206 g (203).

6 fixing bolts included.