Jungle Jim's Jungle Wheels Sulky Replacement Tires - 2 Pack 900 Air Filled Tires for Golf Course & Turf Maintenance | Durable Lawn Mower Tires for Smooth Riding

I've gone through several sets of the traditional Jungle Jim's wheels and I continually wear out the bearing and the hub of the wheels always tear out. On top of that, even when the traditional wheels were new out of the box they had a lot of play in them. The new airless tires have a sealed bearing so you never have to grease them, they fit much better, and I think they will last a lot longer then the old pneumatic wheels. I've been very happy with these so far.