4"Wheel, Steel, assembly with 3/4" Bearing Hub, 2-piece rim, 3-5/8" wide

Wheel has 4 Bolts on a 64mm Bolt Circle. Hub has two 3/4″ Ball Bearings. Hub Bore 2-1/2″ Length. Two piece rim for easy tire mounting. Bead Width 2-1/4″, fits most 4″ tires. (40mm Bore)