These discs utilise High Carbon Alloyed Iron (XG-150) and Thermal Stability Profiling (TSP) allowing constant extreme heat cycles designed for those "late braking scenarios". 4000XS and 5000XS provide improved braking performance, better brake pedal feel and with the benefit of looking the part as well.
- Patented "Kangaroo Paw" ventilation design
- XG-150 High Carbon Alloyed Iron
- TSP (Thermal Stability Profiling)
- Paint protection on non-friction areas
- Heat paint markings
- CBN (Cubic Boron Nitride) machine turned
- Moisture proof corrosion protection packaging
