JT Aluminium Rear Sprocket Yamaha YZ125-250 YZF250-450 99-23 - Blue Size:51T 8638 Viscosity @40°C cSt 69

8638 Viscosity @40°C cSt 69

(MPN): 8059347271941

compact low-profile four-point hinge system perfectly follows the articulation of the knee while the extension stops

450 XCF-W 07-10

JT Aluminium Rear Sprocket Yamaha YZ125-250 YZF250-450 99-23 - Blue Size:51T 8638 Viscosity @40°C cSt 69JT Aluminium Rear Sprocket Yamaha YZ125 250 YZF250 450 99 23 (Blue) 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. Made from 7075 T6 Aluminium Alloy. Fully heat treated for higher wear resistance. Meets Japanese OEM standards. Optimum design for light