Patent ID: 9725132
Date: 2017-08-08
CPC Classifications: B62M,Y10T

Claim:
1. A bicycle crank assembly having a rotational center axis, the bicycle crank assembly comprising: a crank member having an axle mounting hole having a center that is aligned with the rotational center axis, the crank member further having a support portion and an arm portion, the support portion extending from the arm portion in an axial direction with respect to the rotational center axis and being formed around the axle mounting hole, the arm portion being integrally rotatable around the rotational center axis with the support portion; and a sprocket member having an annular sliding portion that extends around the rotational center axis and extending in the axial direction, the sliding portion being integrally rotatable with the support portion, the sliding portion being displaceably coupled to the support portion in the axial direction.