Patent ID: 8616085

Claim:
A bicycle crank assembly comprising: a crank arm including a first outer shell having a first elongated portion with a first axle attachment end, a second outer shell having a second elongated portion with a second axle attachment end, the first and second outer shells being adhesively attached together to form an interior cavity therebetween, a first axle supporting member disposed at the first axle attachment end of the first outer shell, the first axle supporting member having a first bore with a first splined inner surface that is at least partially disposed in the interior cavity between the first and second outer shells, and a second axle supporting member disposed at the second axle attachment end of the second outer shell, the second axle supporting member having a second bore with a second splined inner surface that axially aligns with the first splined inner surface of the first bore so as to form a continuous splined surface in an axial direction of the first bore and the second bore, the second splined surface being at least partially disposed in the interior cavity between the first and second outer shells, the first and second axle supporting members being separate members.