A conveyor roller system having a motor-driven conveyor roller, wherein the conveyor roll comprising: - a conveyor roller tube, - a first axle unit, which is inserted into a first end of the conveyor roller tube, - a first bearing unit at the first end, around which the conveyor roller tube is mounted so as to be correspondingly rotatable around the first axle unit, - a drive unit, and - a first gearing, which is arranged in the conveyor roller tube and which transmits a torque, generated by the drive unit, between the conveyor roller tube and the first axle unit; characterized by an end cap which is connected fixedly in terms of torque to the conveyor roller tube at the first end and to which the first gearing is connected fixedly in terms of torque at a first gearing connection section of the end cap, wherein the end cap has a second gearing connection section, which is different from the first gearing connection section, wherein the conveyor roller system comprises a second gearing, which has a connection region which forms, with the second gearing connection section, a connection fixed in terms of torque, in particular a connection which transmits torque by means of a form fit, wherein preferably the second gearing connection section has an axial surface or a peripheral surface having at least one projection or one depression, and that the connection region of the second gearing has a depression or a projection which is supported against the projection or in the depression of the end cap for torque transmission. wherein the conveyor roll comprising: - a conveyor roller tube, - a first axle unit, which is inserted into a first end of the conveyor roller tube, - a first bearing unit at the first end, around which the conveyor roller tube is mounted so as to be correspondingly rotatable around the first axle unit, - a drive unit, and - a first gearing, which is arranged in the conveyor roller tube and which transmits a torque, generated by the drive unit, between the conveyor roller tube and the first axle unit; - a conveyor roller tube, - a first axle unit, which is inserted into a first end of the conveyor roller tube, - a first bearing unit at the first end, around which the conveyor roller tube is mounted so as to be correspondingly rotatable around the first axle unit, - a drive unit, and - a first gearing, which is arranged in the conveyor roller tube and which transmits a torque, generated by the drive unit, between the conveyor roller tube and the first axle unit; characterized by an end cap which is connected fixedly in terms of torque to the conveyor roller tube at the first end and to which the first gearing is connected fixedly in terms of torque at a first gearing connection section of the end cap, wherein the end cap has a second gearing connection section, which is different from the first gearing connection section, wherein the conveyor roller system comprises a second gearing, which has a connection region which forms, with the second gearing connection section, a connection fixed in terms of torque, in particular a connection which transmits torque by means of a form fit, wherein preferably the second gearing connection section has an axial surface or a peripheral surface having at least one projection or one depression, and that the connection region of the second gearing has a depression or a projection which is supported against the projection or in the depression of the end cap for torque transmission.