Patent ID: 7503239

Claim:
A bicycle crank arm assembly, comprising: a bicycle crank arm including a first end configured to be coupled to an axle of a bottom bracket and a second end having a bore for receiving a bicycle pedal shaft; a tubular member retained in the bore of the bicycle crank arm in a press fit engagement, the tubular member including a tubular portion having an external circumferential surface non-releasably retained in the bore of the bicycle crank arm in a press fit engagement and an internal circumferential surface being configured to be coupled to the bicycle pedal shaft, and a plurality of serrations formed on the external circumferential surface of the tubular portion, each of the plurality of serrations individually extending as a longitudinal protrusion in an axial direction of the tubular portion to non-rotatably couple the tubular member to the bore of the bicycle crank arm; and a washer with an opening being disposed adjacent one axial end of the tubular portion, the bore of the second end of the bicycle crank arm being free of serrations formed on and extending from an internal circumferential surface of the bore.