Black Widow MC-BEDRACK-EXT-V2 MotorcycleTie-DownRackCenterExtensionforThreeBikes Center wheel chock extension for MC-BEDRACK-V2 motorcycle tie-down rail Allows the motorcycle tie-down rail to work with hauling three dirt bikes Offsets the center position to accommodate dirt bike handlebar alignment Includes all necessary mounting hardware Manufactured from durable, powder-coated steel Center wheel chock extension for MC-BEDRACK-V2 motorcycle tie-down rail Allows the motorcycle tie-down rail to work with hauling three dirt bikes Offsets the center position to accommodate dirt bike handlebar alignment Includes all necessary mounting hardware Manufactured from durable, powder-coated steel