O.E. style replacement 50T rear sprocket for 78-79 Suzuki GS550E C/N, 79 Suzuki GS550L N, 80 Suzuki GS550E/L T, 81 Suzuki GS550T X & 82 Suzuki GS550M Z. If you wish to order a different size sprocket to change your gearing, feel free to give us a call to order the size you desire.