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Discussion Starter #1
Thinking about upgrading tires. From what I have read the K9 Super grips have been impressive. Does any have any experience with them? Part 2 of my question is, for those of you that are running 35" tire do you think upgrading the clutch is a must for 35"?
 

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My plan for 35's are the RCOF adjustable clutch weights, muffler and the ECU tune. These KRX's are already geared lower than many other machines and they seem to do well with 35's by themselves. From what I have seen, there are lots of people running 35's on stock machines. The K9's do look impressive. I'm still trying to decide on what 35 to go with also. Good luck with your search.
 

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I was hesitant on what 35" tire I wanted, it was between the K9 and Pro Armor Crawler XG. The K9 look nice, but I wanted something different since they look very similar to the stock carnivores. I like the looks of the Pro Armor since they measure at about 33", it looks more proportionate on the KRX in my opinion. Needless to say, I just ordered 5 of the Pro Armors thanks to @Robman for posting photos and reviews of them! I don't think you can go wrong either way!
 

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Discussion Starter #4
Thanks for the input. From the videos I have seen the K9's are night and day compared to the carnivores. I live in Ohio so most of my riding is trails, mud and some hills. We do make down to Kentucky and West Virginia every now and then. looking for a good all around tire. Not a hard rock crawler. I seen @Robman post on his pro armors. They do look sharp!
 

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Discussion Starter #6
I was wondering that also. I would go with the standard compound over the softer intermediate compound for what I do. Hopefully get longer life out of them.
 

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This guy punctured a sidewall on his new K9's.The Roxxzilla's seem to do slightly better but it's hard to truly differentiate the skill from the different drivers. There are a lot of variables that come into play.
 

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I just watched that video 5 minutes ago. That's funny. I would like to hear from someone who actually has the K9's and rides out east and see what they say. Not that it is a deciding factor but they are about $30 cheaper on Planet SxS also.
 

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Yea, I still like them and the deep tread looks great. The weight is not terrible at 53ish. I'm looking at several tire brands trying to decide.
 

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I just watched that video 5 minutes ago. That's funny. I would like to hear from someone who actually has the K9's and rides out east and see what they say. Not that it is a deciding factor but they are about $30 cheaper on Planet SxS also.
@JTW has the soft compound. believe he is looking at other tires now
 

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Thanks for the input. From the videos I have seen the K9's are night and day compared to the carnivores. I live in Ohio so most of my riding is trails, mud and some hills. We do make down to Kentucky and West Virginia every now and then. looking for a good all around tire. Not a hard rock crawler. I seen @Robman post on his pro armors. They do look sharp!
How is the riding in Ohio? I live in Michigan, so I typically head north and ride in the upper peninsula. It contains sand, mud, hard pack, trails, and rocks... and of course pavement riding sometimes!
 

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Discussion Starter #13
We don’t have the riding parks like you guys do up there. Most of what we have is trails and mud. A lot of what we ride is old coal mine property
 

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I'm also in Ohio and was looking at K9's, XTR 370's, Crawlers and Roxxzillas. So far the K9 is the only tire off my list. The 370's run bigger than most, I would go 33 with them. Right now the Roxxzilla would be my choice. If you think about what gets you hung up around here it's usually rocks, down tree's or root's. All places the roxxzilla's shine. If you start paying attention to some of youtube channels that ride the east you notice once someone gets Roxxzilla's the whole group goes to them.

I watched this today, it has a KRX with 35" K9's. Its not impressive.
 

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I'm also in Ohio and was looking at K9's, XTR 370's, Crawlers and Roxxzillas. So far the K9 is the only tire off my list. The 370's run bigger than most, I would go 33 with them. Right now the Roxxzilla would be my choice. If you think about what gets you hung up around here it's usually rocks, down tree's or root's. All places the roxxzilla's shine. If you start paying attention to some of youtube channels that ride the east you notice once someone gets Roxxzilla's the whole group goes to them.

I watched this today, it has a KRX with 35" K9's. Its not impressive.
Yep I watched it last night. I wouldn't have the k9s from watching that. Those 3 blown budget off road guys can probably drive better than the guy in the krx aslo. But watch TCB Offroad video with a guy with 35 inch rockzilla tires going up devils elbow on windrock. Really impressive. Blown budget will have some more videos of windrock this week with the same rigs. From every video I've watched the last few weeks, rockzillas are the way to go for rock climbing.
 

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Yep I watched it last night. I wouldn't have the k9s from watching that. Those 3 blown budget off road guys can probably drive better than the guy in the krx aslo. But watch TCB Offroad video with a guy with 35 inch rockzilla tires going up devils elbow on windrock. Really impressive. Blown budget will have some more videos of windrock this week with the same rigs. From every video I've watched the last few weeks, rockzillas are the way to go for rock climbing.
The guy going up devils elbow with the 35 inch rockzillas is in a krx I should have said.
 

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The TCB video of the KRX on Zillas is just damn impressive! I've seen the one by Blown Budget also and thought the KRX did pretty good considering that guy was clearly not of their "caliber" and that the K9's are more of a do it all kinda tire and not a dedicated rock crawling tire. What I didn't like was the hole in the sidewall, but I suppose that kinda thing can happen to any tire.
I agree if you ride in areas that have rocks like that then Rockzillas are definitely the way to go. We're in Arkansas and ride mainly in the Ozark National Forest and we don't have rocks like that...at least where we ride. I'm still leaning towards the K9's or the XTR370's for our terrain.

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I went with 32" K9's. I've put 1900 miles on my KRX since purchased in August and roughly 1000 of those miles have been on the K9's. Out of those 1000 miles I'd say 800 was on city streets/gravel roads and they still look brand new. They do great in all conditions including rock crawling. With the amount of blacktop they see i rotate them every 300 miles. I will be going with 35" K9's in a few weeks.
 

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Thinking about upgrading tires. From what I have read the K9 Super grips have been impressive. Does any have any experience with them? Part 2 of my question is, for those of you that are running 35" tire do you think upgrading the clutch is a must for 35"?
We have 35"on our krx we didn't change the clutch...you can,but we didn't. We love them!!
 

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I have the k9's currently and have also had zillas - this is my honest opinion - the zillas are a better rock tire because of the side bite they have - but they PACK with mud and if your around clay in your area you will be on slicks - takes awhile to clear them - great climbing tire. The K9 is a better all around tire IMO - I really like the massive 1" tread depth - it grabs roots easily and if aired down properly they crawl well as well , most other tires are slightly over 1/2" tread depth - I went with their soft compound - if you are worried about wear then obviously the harder compound would be an option. I like them and have had zero issues - If I were crawling 100% I would go back to the zillas because of the extra side bite- but there is always mud on the way to the rocks in my area- I will likely go back with the k9s when they wear out - I like them - There are ALOT of great tires out there - the efx motivator was second on my list - I have a buddy that rides on Pro armors and those are a good tire as well - I stressed to much over it - i would just pick a tire that fits your area (Rock tire, trail tire etc) and go with it - Youll enjoy the 35 size - not only for the clearance but there is a thing called rolling resistance - in short, it takes less energy to roll a 35" tire over a 2 foot ledge then it takes to roll a 31" tire over a 2 foot ledge - it also makes low gear a bit taller and you can use it for more then crawling - im very happy with the tire size on the machine. my 2 cents!!!
1511
 
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