Renthal – Rear Sprockets - Kawasaki - Other, including hard anodized 530 rear sprockets for the ZX 1400, purple grooved 520 sprockets for KX 125-450 and hard anodized 520 gearing for ZX, ER650, Versys and Z models, some Kawasaki fitments do not fall into a neat dirt or street bucket, and this is where those gearing options live. Street and sport-touring riders will find hard anodized rear sprockets in 530 pitch at 41 and 44 tooth for the 06-11 ZX 1400, plus 520 pitch 43 tooth gearing that covers the 84-23 ZX 400 through ZX 750, ER 650, Versys 650 and Z650 to Z800. On the dirt side there are purple grooved sprockets in 49, 50 and 51 tooth for the 94-and-later KX 125 to KX 450, giving builders a colour option that stands out against green plastics. Larger rear tooth counts shorten final drive for stronger corner drive and hillclimb pull, while taller street gearing keeps cruising rpm and chain speed down. In every case, accurate pitch keeps the chain engaging smoothly, protecting the front sprocket and cutting drivetrain noise. These fitments span heavyweight street bikes and full-size motocross machines alike.