CRT-T01F Mid lock disc brake cylinder shaft carbon strip road front flower drum

This high-performance bicycle straight pull flower drum is equipped with a 2:1 21H professional hole design and a 7075 aviation aluminum alloy shell, making it the preferred accessory for advanced cycling. 2: The scientific arrangement of 21H hole positions with a ratio of 1 can be adapted to the straight pull spoke structure, which can balance and disperse the tension of the spokes, effectively reduce the deviation and shaking of the wheel set, and greatly improve the riding stability. The 7075 aluminum shell used balances lightweight and ultra-high rigidity, and is lighter in weight compared to ordinary aluminum alloy materials, effectively reducing the load under the spring and making the pedal transmission more sensitive and efficient. At the same time, the material has excellent deformation resistance and impact resistance, with strong durability, widely suitable for road bikes, mountain bikes, and various riding scenarios such as daily commuting, racing riding, and light off-road driving.