Oregon 72-113 Semi-Pneumatic Wheel 8X200 Turf Tread 71133 8x200, ID 1/2-inch Oregon Part 72-113 Turf tread design Tread Design: Diamond NOTE: The diameter for the wheel is 8 71133 8x200, ID 1/2-inch Hub: plastic/gear, hub length: 1-3/8-inch Turf tread design Tread Design: Diamond