First off,sorry for taking so long for a reply.
I like them much better for my use than the turf tire.
Last evening about dark, I was 3/4 to a mile away from home out in the middle of a field sitting w/a flat tire on the front. Had nothing with me & no one around (cell ph and walkie -talkie both at the house). had to walk home. then neighbor of the property I was on wasn't home to take me back up on a 4wheeler. Make a long walk and story short made it home 9:30PM This all started about 7:45pm.
The R4 seem to hold very well. If you get them and live on hill side. Just be careful of going across wet grass . I had one time tractor wanted to slide down side of hill. Increased my speed just a bit and everything was ok. I don't think I was in 4 wheel drive at that time.
Just hope they hold well this winter.