Some of the significant differences between the KZ900 and the KZ1000 include that the 1000 has a heavier crankshaft for less engine vibration, smoother acceleration and a larger displacement as a result of increasing the cylinder bore from 66mm to 70mm. The 1000 received a rear disc brake. There were various configurations of specifications and assembly, such as having the choice between chain-drive and shaft-drive. The cruiser version LTD was assembled in Nebraska and sold in the United States and Canada.