[Budro2]

Any one know approximately what the Rmax 2 wheel offset is?

I was thinking 5-2 but if the Rmax 4 front is 5-2 at 9” wide then I’m now thinking 4-3.
When I do the wheel and tire package builder on ROCKY MTN ATV for the Rmax 2 it also only offers 4-3.

My nephew has brand new system 3 st3 bead locks and 32” bf Goodrich km3s he’s selling for a great deal but I think they are 5-2 and I don’t want to end up narrower.

 

[Budro2]

So system 3 st3 14x7 5-2 wheel says 30mm offset.
That’s 10mm wider than stock so pretty close to 3/4” wider overall

 

[Budro2]

In the very first post in this thread I listed the stock wheel offsets for both the RMAX2 & RMAX4.

Funny, the first thing I did was come to this thread and go to the first post and for some reason all I saw was the 4 seat! 🤦‍♂️

 

[Budro2]

That would be close for a +30mm offset wheel wheel. There's only a 4 mm difference in offset but an aftermarket wheel is 7" wide instead of 6.5. I put 5+2 wheels on mine that are actually +30mm. That along with a 10" wide tire ( the four-seater only has 9 inch wide tire stock in the front ) widened my front end to 66".

Yep it’s pretty close. That 10mm difference I posted is using the offset calculator from 6.5 stock wheel at 34mm to a 7” wide wheel at 30mm. I’m ok being a touch wider just not narrower.
Im surprised that Rocky mtn Atv is saying the R max needs a 4-3 in a 7” wheel! A 5-2 is already wider and they don’t give you a different option to choose from if you type in Rmax.

 

[Budro2]

Yeah, I hate RMATV's gestapo selection. I have to choose a PoPo RZR to get an 6+1 offset, which is what I plan on going with when I order new wheels\tires.

I’ve been through that crap a few times with them on Gen1 stuff. When I go around the system they get annoyed some times because then they have to use their brain instead of the computer program lol. I like their pricing though.

 

[Budro2]

It is confusing as hell for sure. This video helps simplify it a bit!

A 35mm offset is the same as the stock front wheel but it’s only 6.5 wide instead of 7. There is probably enough room inside for clearance but that would be the concern. You would need a 1” spacer on the rear.

 

[Budro2]

14” 5+2 30mm offset STI HD9 Bronze bead locks. I stayed stock there so I can run them at normal width on my tight trails here at home. I’m a fan of the little wheel, big tire look but more than that I like a lot of side wall for my riding style. They match my painted letters and winch fairlead, winch hook almost perfect. A little darker than the graphics but looks good. Some wheel info for people looking at wheel tire weight combos. Stock wheel is 17 pounds, tusk wheels are 18 pounds, STI HD 9 listed as 14 pounds but my scale says 15. Some of the system 3 wheels are 14 pounds as well. Going to 32” tires, 3-4 pounds in wheels is a big deal. Not knocking Tusk for people sticking to a 30. There are some things about them I like better!
I had settled on 32” Roxzillas for my crawling. They are the king, thing is anything from 32 to 35 is impossible to find. The cheapest price of around 210.00 suddenly started jumping up 40.00 and the available date kept getting pushed back. Turns out a cargo ship in rough seas lost 10s of thousands of them to the depths and they won’t be available for many months. I had some others on the list like the Bloodaxe. They are making there way into the rock crawling world, run true to size but they are very proud of them price wise and they only have a 1/2” tread depth. Some others were way to heavy and some of the lighter ones were decent but only average for rock crawling. I found these new Quadboss 808s and there is very little info out on them. They are dot approved. One pound heavier than my other 3 top choices. Listed as 44 pounds but my scale says 45. Maybe it’s just my scale. Numbers should add up to 58 total but I get 60. 60 was my number not to go over after testing another combo that weighed 57-59. No info on true height available. They MSRP along the lines of the other top contenders but I could find them as low as 205 a piece. Then I stumbled on AMERICAN MOTO TIRE. I took a chance on these because they sold them to me for 166.00 no tax or shipping. That’s 60-80 dollars per tire cheaper than my other top picks!
The center lugs are identical to the proven Bloodaxe tire the side lugs are the closest thing I’ve seen to a Roxzilla. They seem to have a softer more flexible lug than the carnivore which will be good. Tire height wasn’t true to size as expected but I wasn’t disappointed. @12 psi mounted on the wheel but not the car they were 31.5” not bad!
On the car at 8 psi they are a solid 31”. The carnivore was 29 after 800 miles and 9 psi so I still got 1” more of clearance that I wanted. Headed to Sand Hollow in the morning for a couple days of 8 rated trails. Can’t wait to see how they do.

It’s wearing 2.5” spacers just for my rock crawling adventures. I can’t stand the leverage but short term it’s a worth while compromise for me. Fun as hell to drive like that too. Feels way better off camber and In high speed corners. It’s right at 70” wide outside contact patch of tire lugs, not tire pooch. Most of the time I’ll use it in stock fashion.

Before

 

[Budro2]

I like 'em a lot. Question: Do the stock rims have a max load rating stamped or forged on them?

If they do I haven’t looked. I’ll check on it while they are off but it would be next week!

 

[Budro2]

I like 'em a lot. Question: Do the stock rims have a max load rating stamped or forged on them?

I snapped some photos this morning. Not sure if the hieroglyphs can be translated?

 

[Budro2]

A follow up with some tire info for people.

My quest here was a tire that performed great on slick rock primarily. Roxzillla sticky’s are not known for longevity so most people wouldn’t get them unless pure rock crawling was all they did with them. I was going to get the non sticky version. I couldn’t find any durometer numbers for the Quadboss 808. They are listed as a medium to hard terrain tire and DOT compliant.
My brother bought a duromter tester so when I got to Utah we tested them. For those that find this valuable to their riding and purchase information here are some known numbers from either online or personal tests.
Carnivore: 68
KM3: 58
Super ATV Warrior (sticky) 53
System 3 350s: 60
Braven Bloodaxe: 65
Roxzilla: 65
Roxzilla (sticky’s) In the 40s
Quadboss 808: 50 ( It was 48 in the sun, I would consider it a sticky )

My gamble paid off big. They performed great on slick rock. They did great on sand as far as staying up on top and not digging like the Carnivore. Not like your gonna hill climb like crazy with them but they got around the dunes very well. They are showing wear pretty quick like a sticky so I’m glad they were cheap. Not sure I’d get them to run on rocky desert terrain like I have hear at home for general use. I’ve run the KM3 for a couple days and my brother got the KM3 and we ran them with the 808 at sand hollow. I can’t say there is much difference and the KM3 will certainly out last the 808 for all around riding and still do about the same on slick rock but at a much higher purchase price.
Riding with the nephews, one has the 350s and one has the Warrior sticky’s. The warriors aren’t even close on slick rock to the 350s. There is also a lot of videos online showing that they can’t hold their own with Roxzilla sticky’s. They both say their KM3 were better than the 350s but the 350s do very well. When it comes to mud and snow the Warriors are flat amazing!

With Roxzilla currently unavailable, these 808s may get really popular for the crawling world if people discover them, especially at a much cheaper price point. I believe 32 is the largest size however.

 

[Budro2]

Will stock 2021 RZR Pro XP wheels fit an RMAX4? Have a guy basically giving me a new set but not sure if I can run them. I know bolt pattern is the same but unsure about offset/wheel stud size.

Stud size is the same at 12mm Polaris is 1.5 thread and Rmax is 1.25.
Here is a link that provides everything. You can compare the offsets to the ones in the first post in this thread.

Buyer's Guide: Factory Specs For The Polaris RZR Tire Size, Wheel Size, Wheel Offset, And Bolt Pattern

The stock specifications for Polaris Ranger tire and wheel setups, including height, width, offset, lug size, and bolt pattern.

www.everythingpolarisrzr.com

 

[Budro2]

Does the 1.25 thread size just mean I will have to use my stock lugs?

That’s correct! Same diameter, different pitch.

 

[Budro2]

Thanks man!!

Welcome, did you get the offset info?
Last night that link went directly to an article that listed all the details and now it doesn’t 🤷‍♂️

 

[Budro2]

hey guys, looking to purchase an R Max, only one issue.....just purchased a double axle trailer last year and its 63 1/2" wide....will it fit stock in the trailer...if not i'm looking to get a set of rims to make up the difference. I know on the website it says that the UTV is 64" wide but from my experience that's not always accurate. So my question is 2 part, will it fit stock, if not what are my options for offset rims to make up the diffrence. The dealer is waiting on me to make a call so i need an answer yesterday lol.....thought my trailer was 64 1/2" wide for some reason. Any help would be greatly appreciated....Cheers

Max

It will not fit.
64” is the width of the contact patch of the tires. It’s closer to 66” on the outside of the tire bulge.

 

[Budro2]

I believe that particular tire runs a 1/2” small but you can measure it.
Not exactly sure but I think 31” does clear.
The rub won’t hurt anything if you don’t mind seeing a rub mark.

If you don’t want that then the best way to find out is to jack it up, remove both shocks, mount the tires and then slowly let it down. The rubbing would happen on full compression so this way you could see if it clears. You’d want a bit of extra clearance too because the tire may distort and flex into it in the real world.

If they contact maybe you can get your money back before you run them.

 

[Budro2]

OK,
this thread is doing my head in.
I am still awaiting my Rmax4 so basing everything on this forum.
this is what i wish to achieve
Square set up ,
I do not need wider - very happy to keep same track,
I do not really need bigger tyres. I would be happy with up to 30" tyres.
I wish to have stronger side walls for our harsh driving in hardwood timber to try and prevent side wall punchers.

so if have got this correct this is what I need to find in our limited supply chains over here.
rims 14x7 5+2 ( 38mm off set )
tyre BF KM3 ( or similar ) 30x10r14
no wheel spacer required ?

thanks in advance

It’s not mandatory but you will need wheel spacers on the rear of the four seater if you want the back width to match the front width, otherwise it will be a bit narrower in the rear.

People do it either way. Personal preference!

 

[Budro2]

Thanks Budro from reading there was only a .5" difference narrower - is that correct ?

I honestly don’t recall the difference.
I know some said it’s not enough to matter. Others said they actually wanted it a bit wider in the rear for stability.
Strictly personal preference. You could certainly just go without them and then actually measure the difference. If it’s visually displeasing to you, then you could get the appropriate spacers after the fact.
Personally I couldn’t deal with the narrower look on the rear of my old Gen 1 and used 1” spacers to match it. That said, I would want the least amount of spacer possible to lessen the leverage they can apply to the wheel bearings and knuckle bushings over the long haul.
Also, in theory, being wider on the rear will make the front end push in the corners but I doubt 1” wider overall would really be noticeable!

 

[Budro2]

thanks, i am with you dont need extra load on the running gear, we dont do much high speed running so not really worried about the high speed handling..

also the rims would positive OR negative 38 ?? my guess is pos
so far i am unable to find a supplier over here with rims

Yes they are a positive offset.
5” inside 2” outside of center.
The higher the positive number is, the more the wheel will be tucked in.

 

[Budro2]

Squared up with a 5+2 offset looks great. Your naked eye will tell you it is indeed square. The tape will tell you the rear is 1/2" ish narrower. I'm not sure they even make 1/2" spacers...and if you add a 1" spacer, you are going to be 1/2"ish wider in the rear. Bolt 'em on and ride...don't over think it.

Sounds good to me.
Some had used 1.5” spacers which I had thought meant it was much narrower behind.
If that’s all the difference it is I wouldn’t use spacers either.

 

[Budro2]

so in my search for rims, I have only one brand available in Australia and that is 4x156 14x7 in p38 offset and that is brand Raceline.

the manufacturer catalogue does not list Rmax, they claim " Sounds like the same fitment as a Polaris 4/156 "
so can anyone confirm this before i look further.
cheers

It will work just the same.
The issue you will run into is the lugnuts.
Polaris uses a 12mm stud with1.5 thread pitch.
Yamaha Rmax is a 12mm 1.25thread pitch.
If you order it as listed with lugnuts for a Polaris you will receive the wrong lugnuts so hopefully you can sort that out at order time.