JT Sprockets Aluminium Rear Sprocket Suzuki RM 80 85 1982 - 2023 Yamaha YZ 80 85 1993 - 2025, 51T

JT Sprockets is the world's leading manufacturer of aftermarket sprockets, constantly raising the industry's standards for quality and service. Precision CNC machined to JT's uncompromising standards from certified 7075-T6 Ergal aviation grade aluminium alloy, the JT RaceLite sprocket range is designed and engineered to withstand extreme pro-race conditions, providing maximum strength and durability at minimum weight.

https://www.jtsprockets.com/catalogue/part/JTA798BLK/