About this item Bicycle hub shaft made of high quality carbon steel, solid iron structure, electroplated surface, not afraid of wear, corrosion resistance long service life. Precision machining, high strength, not easy to break. The bicycle multiple speed front hub axle is lighter in weight and will not increase the training amount in your training, which is suitable for long-term riding. Precision machining, high strength, strong, not easy to break, long service life. The exquisite technology makes the bike axle look delicate, the surface is smooth without burrs, the thread end is complete and deep, the force is uniform, not easy to slip, light and practical, wear-resistant and sturdy, suitable for long-term riding. The bike axle is easy to install and disassemble, good stability, excellent performance, and can be quickly replaced, which is very suitable for mountain bikes, easy to use, and bring more convenience to your journey. This bike hub axle is suitable for most length matching bicycles, mountain bikes, variable speed vehicles, training vehicles, etc. The best choice for bike lovers.