Home Products Motorcycle Parts Motorcycle Engine Parts Sprocket Sprocket-1/2x1/4(420) Sprocket-1/2x1/4(420) Q'ty : Add To Inquiry Specifications Model: 1/2x1/4(420) Roller: 7.7mm Bore: 54mm Thread hole:8.3mm Teeth: 40 Related Products Sprocket-1/2x5/16(428) Add To Inquiry Sprocket-1/2x5/16(428) Add To Inquiry Sprocket-1/2x1/4(420) Add To Inquiry Sprocket-1/2x5/16(428) Add To Inquiry Sprocket-1/2x5/16(428) Add To Inquiry Sprocket-428 Add To Inquiry