Enhance your bike's performance and reliability with this high-quality Rear Hollow Shaft, expertly crafted from durable chrome molybdenum steel for long-lasting strength and exceptional wear resistance. Designed to fit a wide range of road bikes and mountain bikes, this rear hollow shaft is compatible with most length-matching bikes, making it a versatile upgrade for your cycling needs. Key Features: · Wide Compatibility: Suitable for various road and mountain bikes, ensuring a perfect fit for most length-matching bike models. · Easy Installation: Tool-free design allows for quick and effortless installation and removal, saving time and effort for cyclists of all skill levels. · Precision Dimensions: Measures approximately 190mm (7.5in) in length with a hole diameter of 9.5mm (0.4in); please verify the inner diameter of your existing bottom bracket before purchase to ensure compatibility. · Superior Material Quality: Made from premium chrome molybdenum steel, providing high strength and durability with CNC-processed axes and finely surface-ground for smooth operation. · Reliable Performance: Manufactured under strict quality control standards to guarantee excellent stability, safety, and long service life for worry-free use. Specifications: · Item Type: Rear Hollow Shaft · Material: Chrome Molybdenum Steel · Color: As Shown in Pictures · Weight: Approx. 163g (5.7oz) · Length: Approx. 190mm (7.5in) · Hole Diameter: Approx. 9.5mm (0.4in) Package Includes: · 1 x Rear Hollow Shaft This rear hollow shaft is an ideal component for cyclists seeking a durable, high-performance replacement or upgrade part. Its robust construction and precise engineering ensure smooth, stable operation, enhancing your bike’s overall functionality and riding experience.