FRAME TYPE : This specific M30 bottom bracket is made to be installed in a BSA frame, also known as an English Threaded frame.
BEARINGS : Praxis M30 bottom brackets have a 30mm Drive and a 28mm NonDrive Bearing. These are specifically made for use with our Praxis M30 spindles. A drive-side wave washer is used for preload of the bearings.
TOOL : This specific M30 bottom bracket uses our M30 BB tools for installation and removal.