Rear Wheel / Toro 105-1816Pack Size:1Toro 105-1816NHC 225-1268, Ratio Parts 2-038, Rotary 13491Toro 22" Recycler, 20012, 20016 (2002-2005) and 20019Bore: 1/2 ", Tread: Radial, Wheel Size: 12", Hub: 1 3/4 "