Polaris RZR RZR XP Replacement Radius Rods from Racer Tech

[Tony@Racer Tech]

Well, here we go. First new product from our new shop. We've had our XP in house for a while now and we've obviously been crashing UTV's for years now so by using our experience and resources I decided to start with the obvious stuff first. Here's the fix for about the weakest link on the RZR XP 900. These Radius Rods are a direct bolt-on replacement and work with the OEM trailing arm and knuckle/spindle. They are 1.25" dia. 4130 cond. N Chromoly and use 5/8" FK heim joints. The lower rod is designed to be a fixed length by turning the heims all the way in so they bottom out on the nut. This will help reduce issues with setups gone wrong. The upper rods have a little room for adjustments for the inclined rider to tweak the handling a little bit if desired.

We've already bent these and spoke to others who have as well. Heck, I literally bent one by kicking it! We will be releasing these on our website this week yet and posting in our vendor section with the official release including pricing. If you have questions please just give me a call. I'm busy wrecking this thing and designing new parts for it...

BTW, We have a lot of new things coming out for the RZR XP now that our big move is done. If there's something you have in mind there's a good chance we're already doing it. Feel free to email, PM or call if you'd like to discuss some ideas.





Thanks! I'll post some pics up of the new shop later when its all organized.

You can find them on our website here.

[Spicoli]

Great job guys. When I saw the XP in person that was one of the first things I noticed as a weak point.

[JimandMelissa]

The cars with trailing arms I'm used to seeing don't have radius arms. I'm trying to understand why they have them on these cars?

Sorry if it's a stupid question.

[mtoma]

Great idea, that always looked like a weak spot.

[Andy@Racer Tech]

Originally Posted by JimandMelissa

The cars with trailing arms I'm used to seeing don't have radius arms. I'm trying to understand why they have them on these cars?

Sorry if it's a stupid question.

It's not a stupid question at all. There seems to be a lot of confusion about the RZR XP rear suspension. What you need to know is just because it has trailing arms it doesn't mean it's a true trailing arm suspension. It's more of a three-link design than anything IMO. The Commander has a true trailing arm design, where the hub truly "trails" the pivots.

[JoeyD23]

bad ass!!! great idea guys!!

[JimandMelissa]

Originally Posted by Andy@Racer Tech

It's not a stupid question at all. There seems to be a lot of confusion about the RZR XP rear suspension. What you need to know is just because it has trailing arms it doesn't mean it's a true trailing arm suspension. It's more of a three-link design than anything IMO. The Commander has a true trailing arm design, where the hub truly "trails" the pivots.

What doesn't make sense to me, is with radius arms set up that way, the wheels will move in and out from the centerline as they travel up and down. I haven't seen an XP up close. It would seem the leading edge of the trailing arm needs to give some how to accomodate this.

Even if it does, I'm still wondering why they did it this way?

If someone has a pic of how the trailing arm connects to the chassis it might help.

[Bajaxp]

Heim joint in the front accomodates the movement.

With a traditional trailing arm you really can't design in track width changes or camber changes. Polaris did this by design for handling reasons and if you have driven an XP you have to admit it handles awesome.

The new radius arms look really nice and I will bet they are lighter. The kick test did crack me up though. Go kick the front steering arms coming out of the rack on a Class 1 car. I bet they bend! Haha...

[JimandMelissa]

Originally Posted by Bajaxp

Heim joint in the front accomodates the movement.

With a traditional trailing arm you really can't design in track width changes or camber changes. Polaris did this by design for handling reasons and if you have driven an XP you have to admit it handles awesome.

The new radius arms look really nice and I will bet they are lighter. The kick test did crack me up though. Go kick the front steering arms coming out of the rack on a Class 1 car. I bet they bend! Haha...

Thanks

[07fj]

Originally Posted by Bajaxp

Heim joint in the front accomodates the movement.

With a traditional trailing arm you really can't design in track width changes or camber changes. Polaris did this by design for handling reasons and if you have driven an XP you have to admit it handles awesome.

The new radius arms look really nice and I will bet they are lighter. The kick test did crack me up though. Go kick the front steering arms coming out of the rack on a Class 1 car. I bet they bend! Haha...

come try and bend mine, I bet they don't.

and I doubt, the RT arms are lighter than stock POPO.