This tire is a 2 ply rubber tire with tube. It comes standard with a 3.25" centered hub and 1" roller bearings. Other bearing sizes available. Not for highway use.

Tire Specs
Tire Diameter: 17.5"
Tire Width: 8.5"

Tread: Ribbed

Hub Length: 3.25" centered hub

Bearing Size Options: 1/2", 5/8", 3/4", and 1" 
Load Capacity: 500 lbs 

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