I put a set on my 2004 Jeep TJ and had no problems with balancing, Jeep was smooth, I sold the Jeep with some 10,000 on these tires and all was good at the time. Don't know of a quality problem with these tires, but on the Jeep Forum these are very popular tires.gunspin
IÂ’ve been debating between sticking with KO2s or trying something new. The balancing issue has been a pain for me too. Do you notice any difference in road noise or fuel economy with the STT Pros?Originally Posted by tunnel rush
I used to run KO2s on my truck and had constant issues with balancing and vibrations that were pretty annoying. I decided to switch to Cooper Discoverer STT Pros, and honestly, it's been a night and day difference. No more vibration problems, and they seem to hold up better in terms of durability. I also like the added peace of mind with their tread wear warranty. HavenÂ’t had any regrets with the switch, but I do miss the look of the KO2s' tread pattern!