525 Motorcycle Rear Sprocket For Kawasaki ZR900 Z900 17-24 Ninja 1000SX ZX-7RR ZX-7R ZX750 96-03 Fit For Kawasaki ZR900 Z900 2017 2018 2019 2020 2021 2022 2023 2024 Ninja 1000SX ZX1002 2020 2021 2022 2023 2024 ZX-7RR ZX-7R ZX7R ZX750 1996 1997 1998 1999 2000 2001 2002 2003 works with standard 525 drive chain system drilled bolt holes match rear hub mounting layout allows direct installation without or Smooth machined tooth profile reduces chain skip running vibration to deliver steady torque transfer Made of density carbon with full treatment hardened tooth surfaces slow down abrasion wear Strict OEM dimensional calibration uniform plate thickness ensures balanced rotation at all speeds