Show off your Cooper ST Maxx

Well after 5.5 years and 50k miles on the Nitto TG it was long overdue for a change. Did much research and decided on Cooper Discoverer St. Maxx in 295/70/17. I've got a little rubbing issue only on driver side that I'll need to trim but shouldn't be an issue.

 

Truck looks good with the new rubber, enjoy them, I love mine, think I have a problem lol I'm always looking at them when I get out of my truck... And go into places... And the fact I keep coming back to this thread to look at the same tire I have LOL

 

Snow MAXX!



The eastern plains of Colorado have been a frozen wasteland for the past couple of weeks and these tires have performed pretty well on just about everything except ice. I went on a wheeling trip a couple of weeks ago where there was some good powdery accumulation at higher elevations and I didn't have any trouble getting through it.

 

Last winter I ran mine in some deeper snow.. 8-16" depending on where I was and these were great. Even at less then 1/3 tread left. I was running at 18 psi and it was good. I said what the heck and went to 12 psi and they were not all over the place. I can't compare them to anything other then a p rated tire thou. Only time I wished they were better was on ice. My factory sipes are gone so that is no why. What characteristic might you be looking for that I may be able to help describe?

Normally, I run these at 28 psi in town and 32 on any distant trips.

 

There is no real report on how they handle in the snow from what we have all looked at.

We are just more curious as to the handling in different types of snow (hardpack, powder, powder over ice, wet snow, dry snow, etc.)

These are my next pair of shoes for mine and I just wanted a better idea of the handling capabilities in snow and ice since I spend a fair amount of driving time in it.

 

Where I am located most of the snow is wet. I can't say I have even thought twice about driving on it. When the snow becomes packed over ice or fresh dry over pack/ice it is good too. The only time I am concerned is when it comes to ice or iced over packed snow. i posted a link to a video earlier in this thread. A bit into the vid you can seenmy rearend slip around and stall a bit. That was in 2wd climbing about a 5* incline on ice. (We were on the path to get to the wheeling) In one of my other videos I get stuck after turning around and the truck slide down hill on ice towards a clif. I caught on a tree and the tires dug in but my rear was about frame deep and I needed a tug from there. That was when I realized my tires need a bit more siping for ice.
Otherwise the entire day was super fun and playing in the snow was just that. Fun.

This is my experience and my tires are worn. I do love these tires and will purchase them again when the time comes. Just in a dif size. 255/80 from the 285/70 on there now.

 

Who on here had their own siping tool?

 

I wouldn't go near my tires with one. Other than a couple of youtube videos, I have no experience with the process or the engineering thought behind it.

My tires would end up looking like my head after taking a pair of clippers to it if I decide I am a qualified barber.

 

I've never used one but as your tires wear and before the sipes are completely gone I would imagine you could just "deepen" them...
Maybe add some very small extras

 

Well there you go. Proven wrong. I can trace shit, so maybe I do have the requisite skills, who knew.

 

For winter driving, I change out to a separate set of 32" dedicated winter tires. The rubber compound is designed to deal with cold weather, and siped for ice traction they are also on the truck for 5-6 months of the year, and I still have clearance to add chains if need be.

 

I added sipes to mine took a good deal of time, but it should help, I had heard around the plant that they were looking to change the st maxx with more siping added to them, but don't know for sure as they make them at our texakanas plant...

 

Then they would be the best hands down! How do you feel the sipes are working out? Much ice driving yet?

 

Only driven on pure ice once lol on my way home from work, only thing that helped was 4wheel drive... But no tire would been great as slick as it was... But I think the siping does help esp for starts and stops.. But I've noticed since adding the sipes in wet weather it grips even more ESP taking off...

 

Nice!
Nothing is good on ice. You can't expect much when it's that bad. I drive on very hard packed snow all winter. So far so good with these. Really impressed but thay are brand new. Im so happy with these tires so far. Definitely nothing negative to say.

 

The.most important difference between ice radials and all purpose truck tires is the rubber compound, and it's ability to stay flexible at cold temps. For those that only see occasional snow/hard pack yup, adapt your driving style, lower air pressure, maybe add some sizing, and you should do okay w all.purpose M&S rated tires. For those that deal.with snow months at a time, the best answer is dedicated snow/ice tires. No compromise. If you've ever experienced a long hill on an icy hardpack backcountry road and ended up.sliding backwards downhill while still in forward gear, you will be grateful you made the switch to ice/snow.specific tires. I've passed other damaged and stuck emergency responder vehicles unable to get to.a scene, because I had the right tires for the conditions.

 

Sizing = siping. Damn phone.

 

That said, I do appreciate the experiential.feedback on these tires in snow, cold conditions. Once my BFG AT wear out I'd like to size up.and get these Coopers

 

I'm not counting studs, just talking tires

These are far better than the BFG's in snow... I've ran them both and hated my BFG's