![]() ![]() Aired down, they soak up every rut and bump in the trail so well, it feels like the shocks got bypasses added to them. I’ve aired them down as low as 11 PSI with no beadlocks, and they haven’t lost a bead or complained one bit along the way. ![]() We’ll start by following up on what I mentioned last time: they are tremendous over rocks, dirt, and sand. But they have a few vulnerabilities that seem to grow with time. They hold a straight line on good asphalt and concrete, and don’t make enough noise to be a nuisance. Overall, I’d rate the road performance as a 6/10. The Toyota traction system and transmission setup don’t exactly encourage peel-outs, so to be able to make the tires chirp when pulling off from a dead stop into a turn or a quick jump across a street when the asphalt is moist is curious when you’ve got 11/32” of tread left. This is something that comes as a bit of surprise, as they didn’t seem to have any sort of deficiencies in adverse conditions at first. In the last 7K or so miles, I found a tendency for these tires to break free a bit on asphalt in wet conditions. Again, it’s hard to say how much of that onus is strictly on these tires, and how much of it falls onto ODOT. That frequency of correction is just downright annoying, and even dangerous if the driver isn’t paying full attention to the wheel. The Coopers constantly catch the lip of the ruts and want to pull the truck one way or the other. As much as I hate California’s concrete highways, Oregon’s pavement is even worse, as the constant moisture and heavy traffic puts visible ruts into the asphalt. Especially those who are slapping the STT Pros on as their first set of upsized rubber after a lift. However, for those who have never driven mudders or knobby-inspired tires, it will take some getting used to. To be fair, it’s almost impossible for any set of rubber this wide and with these kinds of lugs and treadblocks not to in some capacity. Over the last 16 months, I have noticed a tendency for these tires to wander on the highway. You can have a conversation over them, and light music drowns their noise out. In many tires, the road noise increases exponentially as the tire continues to wear, whereas the STT Pros seem to have maintained a consistent hum. While they made a noticeable amount of road noise from the get-go, that level did not go up significantly. I noted previously that these are aggressive tires, and that silence should not be expected. My original plan was to write the follow up after a year, but better late than never, right? Let’s begin. Since then, I’ve put 40K miles on the tires, and have gotten a chance to see them work in every condition imaginable. Shortly thereafter, I wrote up my initial impressions with the tires, which can be found here. Just a few weeks afterwards, I broke them in on a 6 day trip through Colorado, New Mexico, and Arizona. In November of 2017, I had a set of 315/75-16 Cooper STT Pros mounted up to my FJ Cruiser. This review is current as of the tires being removed and replaced in April of 2019. NOTE: This article has been edited and amended since its original post date in March of 2019. ![]()
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