Martin Wheel 615-OF-R 6 by 1.50-Inch Light Duty Steel Wheel for Lawn Mower, 1/2-Inch Ball Bearing, 1-3/8-Inch Offset Hub, Rib Tread Complete tire AND wheel assembly; Hub Length: 1-3/8 inch Offset | Bore: 1/2-inch ball bearing; if style tire tread; 50lbs capacity Non-highway use only Great replacement for general purpose use