Marathon 4.10/3.50-6" Flat Free, Hand Truck / All Purpose Utility Tire on Wheel, 3" Centered Hub, 3/4" Bearings

These are great wheels if this is the size you need. They fit my trailer and got it back on the road in no time at all.

I, like other reviewers here own a large wheeled Generac 15KW Generator. The tubeless tires provided on this unit are totally useless for a device that sits unused most of the time. Every time I went to use it (after a hurricane here in SE Florida) The tires would be flat! So finally, after some research, I found these tires, & ordered them. Amazon, as usual had them at my house in about 24 hours. Installation took about 20 minutes (after borrowing a floor jack from my neighbor, (I couldn't find mine!). I should have gotten these tires three years ago! Eliminate flat tires on your wheeled devices! Get some of these solid tires!

Very easy to install on my trailer mover. Only took about 10 min. Worked very well !

Like, many here I have one of the Generac larger generators. Since 2004 I have replaced the normal tires three times, or bought and returned other no-flat tires that just did not fit or work right. The generator lives in a shed and every few months when I would go to test start the generator I would find the tires flat, distorted (due to being flat), and partly dismounted. Getting them blown up again required a jack and tools to remove the tire from the axle, soaping up the bead of the tire and wheel to get it to seel, a tie-down strap to compress the tire so the tire bead would touch the wheel and an air compressor. This was messy and time-consuming. These tires fit perfectly, maintain the weight of the generator, are sized so it rolls as designed, and most critically are never flat. If you feel the price of two replacement tires is high, then I believe after a year of blowing them up every month you'll decide on getting these. You'll be glad you did.

Tires were exactly as stated. I replaced my generator tires that was starting to dry rot. It’s a large portable generator. If the tires ever go flat I would be in trouble. It sits against the wall in the garage. These flat free tires will save me in the future.

It will take time to see if they don't develop flat spots with my Gnenerac 1500 watt generator. The hole diameter is perfect but the shaft size is a little short. I did not have them now but like a 1/2 inch spacer would help on each wheel. Be nice if a small assortment of spacers was included with each wheel. I'll grease them later as I want to see if they retain their shape first. The unit will roll with these wheels!

Never flat again is the best option for these types of equipment.

These are not good! The bar rings went out after 1 month of use. Trying to see how to get a refund.