525 46T 48T 49T 50T 51T Rear Sprocket Gear Wheel for Yamaha FZ6R XJ6 YZ125 TT-R230 WR250 YZ250 YZ400 WR400F YZ426 WR450 YZ450

High-concerned chemical：None Special Features：Refit Motorcycle transmission system Item Diameter：0cm Item Height：0inch Item Width：0inch Item Length：0inch External Testing Certification：CCC Model Name：YZ450 F-MME Mon/ster Brand Name：BLDR Origin：Mainland China Item Type：Sprockets Material：Carburized steel

High-concerned chemical: None Special Features: Refit Motorcycle transmission system Item Diameter: 0cm Item Height: 0inch Item Width: 0inch Item Length: 0inch External Testing Certification: CCC Model Name: YZ450 F-MME Mon/ster Brand Name: BLDR Origin: Mainland China Item Type: Sprockets Material: Carburized steel