Created: November 2, 2017
Hello, Tyler here from SuperATV. Today I am going to show you how to install some of SuperATV’s heavy-duty, fully adjustable A-Arms on a Polaris RZR Turbo.
[00:10] We get a lot of calls asking about how to properly set up these pivot blocks or where is a good starting point. The easiest way to go about that is to remove the A-Arms off the machine, grab one of the lower A-Arms and pull a measurement from the center of your ball joint housing to the center of the pivot tube. You want to do that on both the front side and the back side. Get those numbers and write them down so you have them there to reference to.
Jump over here to your SuperATV A-Arm and pull the same measurement. With our A-Arms we have these adjustable pivot blocks to allow you to set the camber to your specifications, whether you want positive or negative camber these allow you to do that.
[00:47] For those of you that don’t know what camber is, let me explain. Camber is the amount of degree that your tire is tilted in or out at the top in relation to the bottom of the tire. As you can see here behind me, I’ve done some fancy photoshop work to draw you guys a picture to show you what I’m talking about.
You see this here in this first picture, we have zero camber. Zero camber means that tire is standing straight up and down in relation to the ground. Negative camber when the top of your tire is leaning in. Positive camber is when the top of your tire is leaning out.
Zero camber is what most of you all want to run. It is a great general-purpose, all-around performance setting, it’s going to give you optimal straight-line acceleration. It will treat most riders watching this very nicely.
[01:43] Negative camber comes into play on motocross tracks, or doing some high speed riding and cornering. When you really want to get your cornering traction down, you want to throw a little negative camber in the machine.
To better paint that picture for you, say we’re playing on the motocross track and we have our machine set at zero camber. We are coming into a left handed turn and the entire suspension flexes and tries to make that tire flex out. When you take that turn at zero degrees, it’s taking you out into positive camber range and not giving you that optimal traction pad on the ground. You are more so riding on this outer edge of the tire, which doesn’t give you the traction you need. Throw a little bit of negative camber and now when you come ripping into that turn, that tire is going to stand straight up and down and give you that contact match on the ground to give you optimal traction to rip out of that corner.
Positive camber, haven’t found a lot of good uses for it. It seems to make a RZR want to push into the corners, so here at SuperATV we recommend going anywhere between 0 and -3 degrees camber to achieve a nice sweet spot that you’ll be happy with.
[03:02] Taking these measurements that you got from this A-Arm, apply them here and that is going to get us really close to where we want to be. Once we get it on to the machine we will fine tune it from there. As you saw we already removed these A-Arms, SuperATV suspension. The same rules apply for removing a factory A-Arm or whatever. It’s the same concept to get the A-Arms off.
So now when we get to this point and we have our factory A-Arms off or some other A-Arms, now it’s time to set up SuperATV’s A-Arms with adjustable pivot blocks to achieve the camber that we are after. Once again we are going to get the tape measure to make sure that we have these laid out in the same orientation. We’re going to measure from the center of the ball joint housing to the center of the pivot tube. It looks like we have twenty-three and a half.
We are going to jump over here to SuperATV’s A-Arm and pull the same measurement. It is twenty-three and a half. It looks like these bars are the same so they are set, but just to achieve that you are going to take this and make sure your jam nut is loose and you will rotate that until you achieve that number. Once you get those set, do the front.
Come over here, measure the back. Get that number then jump over here and get the same thing. Once you get where you are pretty happy with it, set it on a flat table. Then just finger tighten the nuts, because more than likely we are going to have to mess with them again. This is just going to give us a rough ballpark and get us very close to where we need to be, but to fine-tune it we are going to have to have to do that on the machine. So, once you get those set, install it back onto the machine and we will go from there.
[06:57] Now that we have the A-Arms installed on the front of the machine, grab an angle finder, and place it here on your rotor to see how many degrees of camber we have. We like to place them around zero to negative two degrees camber. That will change depending on whether you are a hill climber, short course racer, desert racer, or whatever. This machine is used for trail riding so I am going to set it around negative two degree camber.
Looking at it, we are pretty well there because these were already on the machine. I just want to show you how easy it is to adjust the camber with SuperATV’s heavy-duty A-Arms. Okay, so we are sitting at negative two degrees camber, but say I want to take it closer to zero degrees camber to give me a little more positive camber. You saw in the video that we left the nut off of this lower spindle bolt and also left the nuts off of these lower A-Arms. Now we are able to pull these out.
Since I said I’m at negative two degrees camber and I want to bring it in a degree or so and get the tire to stand more straight up and down, I am going to screw these in. That is going to bring the bottom of the tire in and the top out. So, make your adjustments, screw them in or out. Come back over to your machine. It’s literally that easy.
You saw how quick it was to change the camber angle on this machine. This goes across the board with all of SuperATV’s adjustable A-Arms. It allows you to change the camber angle to accommodate your riding style. We are going to button this thing up.
If you have any other questions, feel free to give us a call at (855)-743-3427. Hope this video helped, have a great day.
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