PARKTOOL Bottom Bracket Suitable for BB outer 16 Made of aluminum to minimize scratching of BB tool for external Tool. diameters 42.7/44~45mm.

We offer a wide variety of products, and the following precautions apply to some of them. Please note that they are listed for all products. 【Voltage Compatibility】Designed for Japanese voltage (90-110V). Using with a different voltage may cause malfunction. 【Plug Type】Japanese plugs (A or B type). Use a conversion adapter if needed. 【Transformers & Adapters】Transformers adjust voltage; adapters only change plug shape. Using an adapter without a transformer may damage the product. 【Liability】We are not responsible for damages caused by improper use, such as using the product without a transformer. Compatible with motor lock rings for center lock disc brakes. Compatible with motor lock rings for e-bike Bafang BBSH/BBS02 mid-drive. External BB tools, precisely manufactured using CNC machining. The main body is made of aluminum, which is less likely to scratch the bottom bracket cups. Please attach it to your existing ratchet wrench, torque wrench, or similar tool for use. By using the separately sold BBT-RS together, you can securely attach the bottom bracket tool. (The BBT-RS connects to the bottom bracket tool by passing through the BB shell, preventing the bottom bracket tool from coming loose.)