Full Speed Ahead 68,73 mm English MegaExo Bicycle Bottom Brackets
About Full Speed Ahead - "We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
The bottom bracket shell width is the width, in millimeters, of the frame where the bottom bracket is mounted.
Bottom brackets must fit the frames interface type. For example, an english threaded bottom bracket can only be installed on a frame that accepts english threading.
The spindle interface type must match with the crank arms.