Features 1、Smooth Bearing: This bottom bracket features sturdy bearing that ensures a smoother riding, minimizing friction and wear, extending service life, and allowing you to enjoy miles of cycling 2、Application: This bottom bracket fits seamlessly into frames with 68-73mm width, suitable for mountain and road cycling device, simple installation process reduces maintenance efforts 3、Screw Type Design: Engineered with screw in threaded design, this bottom bracket offers a secure and stable connection. It ensures that your pedals stay firmly in place, enhancing your riding stability 4、Aluminum Alloy: Crafted from aluminum alloy material, this bottom bracket is wear resisting, and built to withstand the rigors of cycling, it can handle various terrains and riding conditions 5、Enhanced Experience: This bottom bracket features 24mm spindle, ensuring secure and stable installation, offering a smoother ride, transforming every cycling session into a joyful experience Item Type: Bottom Bracket Material: Aluminum Alloy Bottom Bracket Shell Width: Approx. 68-73mm / 2.7-2.9in Spindle Diameter: Approx. 24mm / 0.94in Package List 1 x Bottom Bracket