An exercise apparatus includes a main device having a handle member and a seat member, the main device having a driver set rotatably assembled, the driver set having a first driver member, the first driver member having a plurality of first driver units, the driver set having two pedals assembled at two sides thereof, the main device having a wheel member rotatably assembled thereon, a second driver member assembled at an axle of the wheel member, the second driver member having a plurality of second driver units, a first connecting member connecting the first driver member and the second driver member so as to drive the wheel member to rotate, the first connecting member mounted around one first driver unit and one second driver unit, a resistance device assembled on the main device, the resistance device configured to create a resistance force to the wheel member.