A hub assembly is provided for a human powered vehicle. The hub assembly basically includes a hub axle, a hub body, a thru-axle and an electrical cable. The thru-axle is configured to be disposed in a through bore of the hub axle. The electrical cable includes a first cable section extending from an interior space of the hub body through an opening in the hub axle and into the through bore. The electrical cable includes a second cable section extending in the axial direction within the through bore. The electrical cable includes an axially expandable cable section between the first cable section and the second cable section. The axially expandable cable section extends in the axial direction within the through bore. The axially expandable cable section is expandable in the axial direction in response to movement of the thru-axle relative to the hub axle.