No type tire is responsible for more dissapointment with CUT owners than the R4. This is because they are not the best tire for any job that CUT's are commonly used for. Very bad choice for logging in spite of better puncture resistance because of near complete inability to provide traction in mud or snow. Also a bad choice for lawn-mowing because of turf damage only slightly less than ags would cause. Why 90% of CUT's are sold with them I will never know, must be the looks. As for real ag work, it sure is dissapointing when your nieghbor can pull a bigger disk or plow at higher speed with an old R1-equipped 2wd with less hp and of the same weight as your new good-looking 4wd with R4's. The 4wd could pull about 25% more than that 2wd if it had R1's but the R4's take that away, and then some.