Both of my tires went at the same time. I finally found inner tubes for them. I went on Youtube and found a video where he changed the tubes in 1:37 minutes. I don't know how he did it 'cause it took me 1:37 hours just to get ONE tire off one wheel. Then I had to take it to a shop to get the tire back on the rim. I don't think I want to go through all that again with the other wheel.

Anyone have any suggestions? This is the original R&R cart. The new distributors advised me the specs on the whole cart are different from the original. And....the price of new tires is astronomical!

I had the same problem and bought a new cart with tubeless tires, no more problems. My decision was not painful, however, since I had used it daily for years. It simply was not worth the hassle.

I purchased 2 replacement solid rubber wheels 2 years ago. I seem to remember they were about $45 on Amazon Prime, I got free shipping as an Amazon Prime Member. They were worth replacing, I got tired of using a bicycle pump to keep them filled with air.

Try Harbor Freight.

https://www.harborfreight.com/search?q=solid%20rubber%20tires

Jerryghr

I just threw the old version out with the garbage
and bought a new R8..problem solved.

or.........https://rocknrollercart.com/collections/wheels

Fix a Flat does a great job on them, takes just a few seconds and last forever. Both my tires were punctured with rose bush thorns, which shows just how thin the rubber on these tires is. I pulled out the thorns and hit them with Fix-A-Flat and that was more than 5 years ago - never had a problem since.

Gary