JT Steel Rear SprocketYamaha YZ125 YZ250 YZF250 YZF450 1999-2021 50T


  • JT sprockets are made exclusively from the finest Japanese 545C high carbon steel.
  • Heat treated and hand finished to meet or exceed OEM standards.
  • Outlasts any mild steel or surface hardened sprocket by as much as two to three times

JT Sprockets is the world's leading manufacturer of aftermarket sprockets, constantly raising the industry's standards for quality and service. Committed to supplying the most durable, best quality sprockets available in the marketplace worldwide.