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post #1 of 17 Old January 17th, 2018, 10:19 AM Thread Starter
 
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Usa Bigger tires without a new clutch?

Looking at moving to 30's on the 2017 xp4. Do I need to upgrade the clutch? What's the biggest tire I could do without a clutch upgrade? Any recommended rock crawlers?
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post #2 of 17 Old January 17th, 2018, 10:49 AM
 
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Re: Bigger tires without a new clutch?

it'll be fine. make sure you research the tire you chose, not all run true to the size. some 30's can actually be smaller/or same size as the 29" big horns. For example, the 30" pro armor crawlers on the gold edition are pretty close in size to the 29" big horns. Or another example, I just got some 32" tusk terrabites that run about 30.5" mounted, whereas my 32" roctanes are about 32.5.
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post #3 of 17 Old January 17th, 2018, 11:36 AM
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Re: Bigger tires without a new clutch?

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Originally Posted by xpmattyb View Post
Looking at moving to 30's on the 2017 xp4. Do I need to upgrade the clutch? What's the biggest tire I could do without a clutch upgrade? Any recommended rock crawlers?
Going to a 30/10R-14 tire size is very common. Just pay attention to be in low when you need to be to not overtax your belt. This is no different than you should be doing now, plus it's only an inch larger than stock.
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post #4 of 17 Old January 17th, 2018, 03:33 PM
 
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We have a 2017 xp4 1000 with 30íinch rocktanes. Machine has 130 miles on it and already burnt 2 belts. These machines have extra weight and the transmission gearing isnít low enough. Just installed a gear reduction to mine but havenít went on a ride yet.
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post #5 of 17 Old January 17th, 2018, 05:15 PM
 
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Re: Bigger tires without a new clutch?

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Originally Posted by Dirtracer9 View Post
We have a 2017 xp4 1000 with 30’inch rocktanes. Machine has 130 miles on it and already burnt 2 belts. These machines have extra weight and the transmission gearing isn’t low enough. Just installed a gear reduction to mine but haven’t went on a ride yet.

If you are using low gear most the time , something is up man 130 miles & 2 belts is a little much. Only time I have burnt a belt is in the sand pushing it a little to much.... ( we ride a tad aggressive in the sand )


To the OP, I ran 30's on my 2014 for years with no clutch upgrade with no issues , other than the sand .... LOL
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post #6 of 17 Old January 17th, 2018, 05:30 PM
 
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We ride very rough mountains most of the time and the new transmission gears arenít made for rock crawling. Spoke to several people about my issue one being Todd at hunterworks and he explained to me that the new machine in low is like starting off in 3rd gear. And rock crawling that doesnít work. Running 50+ over dunes I? can see where you wouldnít have a problem
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post #7 of 17 Old January 17th, 2018, 07:44 PM
 
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Re: Bigger tires without a new clutch?

Rocktanes are super heavy also


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post #8 of 17 Old January 17th, 2018, 08:31 PM
 
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Re: Bigger tires without a new clutch?

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Rocktanes are super heavy also


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I think the weight of the tire you choose will play heavily into how much you need a clutch. Pun intended. Some tires are very heavy. Manufactures seem to have moon scales also.

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post #9 of 17 Old January 17th, 2018, 08:35 PM
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Colorado Re: Bigger tires without a new clutch?

you might check out maxxis carnivores 8ply and one of the lighter tires out there these are good for crawling too


really though with the oem clutch
you seriously might consider at least a clutch up grade you should talk to hunterworks todd
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Last edited by BLOODY BILL; January 17th, 2018 at 08:51 PM.
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post #10 of 17 Old January 18th, 2018, 04:43 AM
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Re: Bigger tires without a new clutch?

Need and want is two different things and for sure swap out the square pucks in the secondary to round rollers no matter what you do.

Polaris RZR XP 1000 900, Polaris Ranger 800 - 16-18 Secondary Roller Kit


People ask me everyday if they need a clutch kit because they changed tires etc. The answer is not black and white.

Almost everyone benefits from a properly calibrated clutch, about the only person who does need one is a guy who simply eases around 20-30 mph like he is on a Sunday afternoon cruise. There are a few people who do this and no matter what tires etc they do, I can't see them needing to do anything.

Everyone else no matter what will benefit but you need to realize that there is no one clutch set up that does everything, so you can't rock crawl and dune with the same clutch set up, it simply does not work like that. You also need to know that depending on what you are doing your butt dyno may not notice the change. A slow rider that has set his clutch up for that can't feel it, he just is not slipping his belt. The performance oriented driver knows it for sure.

Clutch tuning for performance is important to faster moving people who mash the go pedal to the floor because you need the clutch to get in the right RPM range to propel you as quick as you can. Slow riders like a rock crawler or technical riders simply should not be concerned about what shift RPM is and say if it was 8400 rpm why are you concerned about that? You are never there and you are using low range anyway.

With all this being said the point I am trying to make is, depending on what you are doing as to how you set your clutch up and you need to know that what you set it up for is what it will do best and it will suffer at other activities. There is no such thing as a clutch set up or calibration that works everywhere well, all will do one thing better than another.

Most people ride their RZR in the manner it was created for which is faster trail riding on and off the throttle and the instructions in the clutch kit we sell is written for you and it covers duners as well, just no mention of slow technical riding. I can help the slow riders with theirs via the phone.
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post #11 of 17 Old January 18th, 2018, 06:08 AM
 
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Re: Bigger tires without a new clutch?

Quote:
Originally Posted by Dirtracer9 View Post
We have a 2017 xp4 1000 with 30íinch rocktanes. Machine has 130 miles on it and already burnt 2 belts. These machines have extra weight and the transmission gearing isnít low enough. Just installed a gear reduction to mine but havenít went on a ride yet.
2 belts in 130 miles makes me think you maybe aren't breaking the belt in properly?
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post #12 of 17 Old January 19th, 2018, 03:15 PM
 
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Re: Bigger tires without a new clutch?

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Originally Posted by Hunterworks View Post
You also need to know that depending on what you are doing your butt dyno may not notice the change.
Sorry Todd , I didn't get past this in the post.... LOL !

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post #13 of 17 Old January 20th, 2018, 07:02 AM
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Re: Bigger tires without a new clutch?

Quote:
Originally Posted by WORKINGONJUNK View Post
Quote:
Originally Posted by Hunterworks View Post
You also need to know that depending on what you are doing your butt dyno may not notice the change.
Sorry Todd , I didn't get past this in the post.... LOL !
Unless your foot uses that go pedal you can't feel the 110 hp either!!! LOL

Just because you can't feel it does not mean it is not doing positive things for you

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post #14 of 17 Old January 25th, 2018, 06:18 PM
 
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Re: Bigger tires without a new clutch?

30in gbc's so far so good!!! Been 800 miles! Same belt!
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post #15 of 17 Old January 25th, 2018, 06:19 PM
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Re: Bigger tires without a new clutch?

Stock clutch original belt 32s. Works fine for me
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