Features: This hub is made of quality aluminium alloy, high strength, anti-rust, durable. Fine CNC machining ensures the thread would perfectly fit your bike. Can help you brake your bike quickly and stably, safe and reliable. Excellent hardness would withstand the abrasion of braking and give you a long service life. Nice replacement part for your bike. Specification: Material: Aluminium Alloy Color: As picture shown Options(Hole Spacing): 44mm/1.73inch; 48mm/1.89inch Quantity: 10pcs Inner Diameter: Approx. 34mm/1.34inch Weight: Approx.130-154g Package List: 10 x Adapters Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.