Patent ID: 8561498

Claim:
An eccentric bottom bracket for a bicycle, the eccentric bottom bracket comprising: a first member; a second member separate from the first member, the first member and the second member each including a generally cylindrical body and a generally cylindrical flange, each body having an outer surface with an outer diameter substantially matching an inner diameter of an inner surface of a bottom bracket shell of the bicycle so that each body mates with different openings of the bottom bracket shell, each flange having an outer diameter greater than the inner diameter of the inner surface of the bottom bracket shell and preventing complete admittance of the member into the bottom bracket shell, each body having a bearing guide with an axis that is parallel to but offset from a center axis of the bottom bracket shell when that body is fit into the bottom bracket shell; and a tightening assembly for selectively applying a compressive force between the body of the first member and the body of the second member, the compressive force holding the first member fixed with respect to the second member and fixedly securing the first member and the second member against outer rims of the bottom bracket shell at an adjustable angle.