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Discussion Starter · #1 · (Edited)
XP4 900 & 30” GBC-MS Kanati Mongrel’s?

I have an XP4 with a SDR cage and the SBD kit from Alba (Thanks Nate!). Anyway I was looking to put some new wheels/tires on my ride. Obviously im pushing some more horsepower with the new cams… Currently I have an issue keeping my big horns hooked up in the desert, stepping on the gas seems to break them loose… So I am wondering what your thoughts are on running larger 14’ rims/30” tires are?

I’m leaning towards a larger tires for more:
Clearance (I constantly seem to high center are dragged my pan in the desert over rocks/hill peaks),
and
More top end speed (at the bottom end my tires break loose)
also
I LOVE the look of these larger tires, it makes a side by side look more like a car or a buggy, especially with a nice cage like mine (Thanks Tim).
I have paddles for the dunes and I don’t ride in the mud much here in SoCal.

I'm sure I’ll have to cut/drill the front fenders back a little, BUT PLEASE, Let me know your thoughts, before I buy and attempt to squeeze these tires in.
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

just put these on friday. there the 30" mongrels. stock machine. i went out around the house to see if i could get them to rub and couldn't, even at full turn. now i wasn't going fast or anything but from what i can tell now i might be ok. i know a lot of guys are doing a fender mod or something, i tried to research that on here and couldn't find it anywhere. i love the tires and all the research for two months i've done on them it has been nothing but good. i got them from SXS performance and they were awesome to deal with, great price, great service, had them on my doorstep in two days...
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

and it gave me a pure 3" more ground clearance than i had before. so it's what i was looking for, no lift. the ride is still awesome. here's some pics of the tire size difference. 30" x 10 x 14" on methos wheels which i also got from SXS performance.
 

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The Honey Badger
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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

I have a buddy that went with the 30" mongrels on 14x7 sti beadlocks on his xp4 and he had to majorly trim the front fenders, ended up running the fender flairs off a 50" rzr (would have had to cut a good chunk out of the stock ones to the point it would look awful), and it still slightly rubs on the frame when turning while compressed. At full compression the front tires also rubbed the top of the fender. Also the rear tire on the drivers side got into the intake box (not the actual intake of course, just past the prefilter) just above the wheel breaking off the drain, and rubbing a hole in the bottom of the box. All suspension was stock, didn't crank up preload to try to clear the 30's
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

I run different tires but they are 30" and mine rubbed on the front fenders really bad. I ended up putting the +2" foward A-arms on and it took care of the rubbing issues.
 

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RINO CRASHER
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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

Hi Guys
I have the 30" Kanati Mongrels on my LE 900XP and had some rubbing issues but the fix was easy, Took sawzall to inside plastic areas where the rubbing occured and then moved flares as far backward as possible it seems like it was 1 1/2" or so and never had another problem i can take pictures tommorrow if you want to see it
 

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Discussion Starter · #8 ·
Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

Hi Guys
I have the 30" Kanati Mongrels on my LE 900XP and had some rubbing issues but the fix was easy, Took sawzall to inside plastic areas where the rubbing occured and then moved flares as far backward as possible it seems like it was 1 1/2" or so and never had another problem i can take pictures tommorrow if you want to see it
so you moved the lower fender mount bolt hole back 1.5 inches and cut the plastic down, then re mounted your fender?

how many miles do you have on your tires now? Do you get any rubbing when turning and the suspension compresses? can you comment on performance loss?

yes I'd love to see some photos
thanks again for your input
 

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Discussion Starter · #9 ·
Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

I have a buddy that went with the 30" mongrels on 14x7 sti beadlocks on his xp4 and he had to majorly trim the front fenders, ended up running the fender flairs off a 50" rzr (would have had to cut a good chunk out of the stock ones to the point it would look awful), and it still slightly rubs on the frame when turning while compressed. At full compression the front tires also rubbed the top of the fender. Also the rear tire on the drivers side got into the intake box (not the actual intake of course, just past the prefilter) just above the wheel breaking off the drain, and rubbing a hole in the bottom of the box. All suspension was stock, didn't crank up preload to try to clear the 30's
this was on a xp4 900?
 

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Discussion Starter · #10 ·
Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

just put these on friday. there the 30" mongrels. stock machine. i went out around the house to see if i could get them to rub and couldn't, even at full turn. now i wasn't going fast or anything but from what i can tell now i might be ok. i know a lot of guys are doing a fender mod or something, i tried to research that on here and couldn't find it anywhere. i love the tires and all the research for two months i've done on them it has been nothing but good. i got them from SXS performance and they were awesome to deal with, great price, great service, had them on my doorstep in two days...
I would maybe take a soft tie ratchet strap and try to compress suspension down to see if it rubs as you turn??
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

I have a set of 30" mongrels on sti beadlocks sitting in the garage. Putting them on my xp4 tomorrow. I'll be doing the fender mod as well probably. I'll take pics.
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

What about clutching? The worry i have with going to a 30" tire, is they clutch kit will basically be a mudder clutch weights, which would kill top end, and duning.
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

Get an adjustable weight clutch kit and you will not loose any top speed. You will actually gain top speed because the overall top gearing is higher with bigger tires. Add a turbo with 30 inch tires on an XP 4 and you have the best of all worlds. I am loving it!
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

What about clutching? The worry i have with going to a 30" tire, is they clutch kit will basically be a mudder clutch weights, which would kill top end, and duning.
I ordered the Dalton kit from Hunterworks. Should be here soon.
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

so i'm finding i'm rubbing on the inside, not the fender itself, like where the foot well is, square part....
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

If its rubbing there, you need forward arms.
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

so i'm finding i'm rubbing on the inside, not the fender itself, like where the foot well is, square part....
What wheels and offset are you running?
 

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Re: XP4 900 & 30” GBC-MS Kanati Mongrel’s?

no...sorry.....i just realized this is a XP4 topic.....i have a 2010 800 4 seater.....i have 30" mongrels with a 4-3 offset all the way around by the way..
 
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