RT515 Long flat hole bicycle brake disc

This is a long side hole shaped bicycle brake disc, with a radially elongated long side hole design on the disc surface. Its core function is to enhance heat dissipation, quickly discharge mud, and optimize lightweight performance. The long side hole extends along the braking trajectory direction, significantly increasing the air convection area, accelerating heat dissipation, and effectively suppressing thermal attenuation during long downhill slopes; At the same time, the elongated hole shape is more conducive to the centrifugal ejection of mud and sand, reducing the retention of impurities and maintaining stable braking force under wet and muddy road conditions. Compared to ordinary circular holes, the elongated hole shape further reduces weight while maintaining the rigidity of the disk surface, and evenly disperses thermal stress, reducing the probability of deformation. Combining efficient heat dissipation, self-cleaning, and lightweight rigidity, it is suitable for upgrading mountain, gravel, and endurance cycling.