Bicycle Bottom Bracket T47 Thread Bearing Built in Bottom Diameter 47mm Inner Diameter Shaft 30mm

Feature: 1. Aluminum Alloy: The aluminum alloy bottom bracket shell is made of aluminum alloy material, which is sturdy and durable. 2. Silicone Sealing Ring: A double silicone sealing ring is installed at the port at the bottom of the bracket. 3. Long Service Life: Prevent pollution, prolong service life, and easy to install, alloy material, durable and long service life. 4. Protect the Frame: The threaded system can protect the frame and output more power, better than the ordinary structure. 5. Specifications: The outer Diameter of the bicycle bottom bracket is 47mm, the inner Diameter is 30mm, five way for built in 86 92mm. Specification: Item Type: Bicycle Bottom Bracket Material: Aluminum Alloy Outer Diameter: Approx. 47mm 1.85in Inner Diameter: Approx. 30mm 1.18in Five Way: Built in Approx. 86 92mm. Package List: 1 x Bicycle Bottom Bracket