Features1Smooth 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 2Application: This bottom bracket fits seamlessly into frames with 68-73mm width, suitable for mountain and road cycling device, simple installation process reduces maintenance efforts 3Screw 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 4Aluminum 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 5Enhanced Experience: This bottom bracket features 24mm spindle, ensuring secure and stable installation, offering a smoother ride, transforming every cycling session into a joyful experienceSpecificationItem Type: Bottom BracketMaterial: Aluminum AlloyBottom Bracket Shell Width: Approx. 68-73mm / 2.7-2.9inSpindle Diameter: Approx. 24mm / 0.94inPackage List1 xBottom Bracket