Abstract: A seat for a bicycle device having rotationally mounted pedals is provided. The seat includes a buttocks support having a surface for supporting the ischial bones of a user and a base connected to the buttocks support for attachment to the bicycle device. The buttocks support surface comprises first and second sides transverse to the ischial bones of the user and third and fourth sides connecting the first and second sides. The surface provides a circumferential area approximately equal to or greater than the area occupied by the buttocks of a user when seated. The base positions the buttocks support transverse to the rotational plane of the pedals of the bicycle device.