Milwaukee Twins Sight Glass Master Cylinder Cover Enhance your front brake with the sleek Milwaukee Twins Sight Glass Master Cylinder Cover. It delivers an OEM-style aesthetic, featuring an integrated sight glass and is accompanied by a rubber gasket to ensure a leak-free, secure fit. This simple upgrade aligns seamlessly with your motorcycle's factory setup, promising both style and functionality. Formerly offered under the J&P Cycles brand. Features: Front Includes Rubber Cover Gasket With OEM style sight glass Replaces OEM 46423-05