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How to choose your grooved or smooth brake discs
If you're considering improving your vehicle's braking system, one of the most important decisions is choosing the right type of brake disc. Grooved or smooth? Each responds to different driving conditions, thermal needs, and braking styles.
In this article, we explain the technical differences between brake discs, how to choose the most suitable one according to your type of driving, and which models we recommend from SDT Brakes to ensure safety and performance.
Technical differences between brake discs
Los discos de freno convierten la energía cinética del coche en calor mediante fricción. Por eso, su diseño y materiales son clave para evitar fading (pérdida de eficacia), garantizar frenadas constantes y mantener la seguridad bajo control.
A continuación, desglosamos los tres tipos más habituales:
Discos lisos
¿Qué son? Son los más comunes en vehículos de serie. Tienen una superficie completamente plana, sin ranuras ni perforaciones.
Ventajas: Buena durabilidad, bajo nivel de ruido, coste contenido y excelente compatibilidad con sistemas OEM.
Limitaciones: Disipan peor el calor en uso intensivo, pueden cristalizar más rápido si se sobrecalientan y generan algo más de polvo.
Recomendados para conducción urbana, uso diario o coches de potencia media sin modificaciones.
Discos ranurados
¿Qué son? Incorporan ranuras superficiales talladas sobre el disco. Estas ranuras ayudan a eliminar gases, polvo y agua generados durante el frenado.
Ventajas: Mejoran el agarre inicial, previenen el glazing (cristalización), mantienen limpia la superficie de la pastilla.
Limitaciones: Pueden generar un poco más de ruido, temperatura y desgaste de pastilla, aunque mejoran la sensación al frenar.
Ideales para conducción deportiva, coches potentes o uso en tramos con curvas o montaña.
Recommended SDT discs
At SDT Brakes we manufacture discs with specifications for every type of driver. Here are some of the most prominent ones:
SDT Smooth Sport Oem+ Discs
Reinforced double-layer design with internal ventilation.
Heat-treated material to avoid deformations.
Compatible with S50 and RS55 pads.
SDT Slotted Cut-Moon Discs
Precisely carved slots for enhanced grip.
Dynamic balancing to prevent vibrations.
Recommended for active and sporty driving.
Do you have compatibility doubts? Our technical team can help you choose the exact disc based on your car model and driving type.
Instalación y compatibilidades
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Before installing your new discs, keep the following in mind:
Professional installation : While it is possible to install them yourself, we recommend visiting a specialized workshop to ensure proper fit and torque settings.
Initial run-in : During the first 200–300 km, avoid aggressive braking to allow the pads and discs to properly bed in.
Maintenance : Periodically check the thickness of the disc, the presence of cracks, and the condition of the surface.
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Conclusion
Choosing between slotted or smooth brake discs depends on your driving style and usage conditions. If you seek efficient cooling, thermal stability, and safety in sporty or loaded driving, the SDT Sport oem smooth discs are a key investment in your car's performance.
At SDT Brakes, we offer you technical braking solutions developed in Spain , designed for demanding drivers and high-performance vehicles.