The BRAKING EPTA Rotor Kit utilizes a directional “non-round profile” based on BATFLY geometry, featuring a carrier constructed from ALUMINUM AL7075-T6. This material selection enables an optimized shape that reduces overall weight while increasing structural rigidity. The design incorporates a new rotor-hub coupling system that maintains constant, direct contact between components, eliminating the traditional pin-based connection in favor of clips and nails. This improved load transfer mechanism prevents deformation and floating variability over the product’s lifespan, ensuring consistent mechanical integrity.
The updated coupling geometry allows rotor stems to slide in the radial direction, enhancing the system’s response to thermal stresses and deformations at high temperatures. This design promotes a more homogeneous disk temperature distribution without adding weight, delivering a powerful and effective braking force from the start to the end of the braking event. The performance characteristics of the EPTA discs have been validated by main MXGP riders, who report an improved feeling and increased power from the brake system.