I have been using these wheels on an Ibak lateral launcher for the last year. It has always been a real struggle getting my tractor through a line especially in PVC or lined pipe. I no longer have to struggle through a line. The wheels seem durable and have plenty of life left after a year of use. I just ordered a new set for another truck. They have made improvements to the tread and the hub adapters. Which is another thing I like about Trugrit I can use the same wheels on our RST tractor using the RST hub adapter. I will be ordering them for our Rausch trucks as soon as they are available.