R.E. Tires. At the forums suggestion, I tried to find 589s with no luck. After reading (Sibiole?) and talking to Robin, I finally tried the Reapers in 10" & 12". Knowledgable I am not on the RTVs, but have worn out three ATVs and a few off road 4 wheelers and have learned a bit about tires. Have not put the Grims to the test yet in really bad mud, but so far they are excellent. And believe it or not, the ride is about twice as smooth as the original worksites. Even this spring in mostly dry conditions I was having issues with the worksites in 4WD. Two wheel with the Reapers in the same area (back of my property is about 20 to 25 degrees) I have not yet spun a wheel.~~~~~KOBE
From what I was told. ITP 589's has been discountinued....