JT Steel Rear Sprocket Yamaha YZ125-250 YZF250-450 99-23 (49-51T)

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.

• 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