Compatible external semi hidden headsets and BB86-92 press fit bottom brackets.
Ball Bearing Design makes it more stable while using and would not hurt your bike frames.
For the first time, it is recommended to press into a bowl first,and then press into another bowl after completion,it is recommended to apply grease to the pressing part for easy installation,disassembly and maintenance
Quick release design and standard construction for fast installation and removal of tool.
Bicycle headset bottom bracket is perfect tool for helping you to replace your bike old torn part, easy to use, convenient to install.