Renthal – Front Sprockets - Kawasaki Street - 520 Pitch, including 520 pitch countershaft sprockets for the 19-23 Kawasaki ZX 636 ZX-6R and the 98-02 ZX 600 and ZX 636 ZX-6R in 14 and 15 tooth, street and track riders convert to 520 for a reason: a lighter chain and sprocket set reduces rotating mass and frees up drivetrain drag, and the gearing change wakes up a middleweight supersport almost immediately. These 520 pitch sprockets are precision cut from hardened steel so the tooth flanks stay square under repeated hard drives out of second and third gear corners, where a worn sprocket starts to hook and snatch. Fitments cover both the modern 19-23 ZX-6R 636 and the earlier 98-02 ZX 600 and ZX 636 platforms, so long-term owners and newer bike buyers are both served. Consistent pitch accuracy means smoother chain engagement, less driveline lash on part throttle and a quieter ride at cruise, all of which make a sportbike feel more connected. Renthal built its reputation in racing paddocks, and that same material quality and finishing carries into the street sprockets Kawasaki owners bolt on for sharper response.