Features 1、Made of metal material, strong and durable. 2、Suitable for the thread of 1.37 with an inner diameter of 24mm(0.9 in). 3、Products are divided into left and right parts, R stands for right side, L stands for left side, please pay attention to the distinction when installing. 4、Fine workmanship and clear thread, different parts connect closely. 5、The bearing is accurate and not loose, assure that the center of the circle is consistent when turning. 6、Small size and lightweight, easy to carry and store, convenient to use. Condition: 100% Brand New Item Type: Bicycle Bottom Bracket Type: BB thread type Material: Metal Color: Dazzling Colour Product Size: Base Diameter: Approx. 42 mm/1.7 in Height: Approx. 92 mm/3.6 in Inner Diameter: Approx. 24 mm/0.9 in Weight: Approx. 100.0g Specification: Thread Bottom Bracket, Suitable for Frame Five-Way 68-73mm(2.7-2.9in), thread: BC1.37''x24 Bearing: Steel bearing Package List 1 x Bicycle Bottom Bracket