Polaris RZR XP 1000 / Turbo 4-Seater R2 Tree Bars

We are excited to announce the release of our highly anticipated R2 Polaris RZR XP 1000 and Turbo 4-Seater Tree Bars! Much like our 2-Seater R2 Tree Bars, these are an updated design from our previous tree bar. One of the biggest changes from our old design is that they are now a two-piece tree bar. The biggest complaint we heard about our original one piece design is that the box was too expensive to ship. Now, we can package the tree bars more compact saving half the shipping cost!

So now you are wondering, if they are two pieces they aren’t as strong now right? Wrong! The R2 Tree Bars actually tested to be stronger than our one piece design, and are much easier to mount. The bars simply slide together and then can be attached to the OEM mounting holes.

Polaris 4 Seater Tree Bars- Orange

The R2 4-Seater Tree Bars will also utilize our Patent Pending L-Bolt Mounting System. You can rest assured that you will have top-notch mounting hardware that will not break off every time you hit the trail like the factory mounting system.

Another exciting change is that we updated the design to follow suit with the R2 2-Seater Tree Bars, giving it a more sleek look while still providing the same ultimate protection. They even feature the discreet bottle-opener gusset on each side, as well as the classic “HR” laser cut on the ends.

No matter whether you are hitting the trails on the weekends or cruising through the dunes or desert, our new R2 Tree Bars are a must have for any 4-Seater! Not only does it protect the sides from trees, but they can protect the passengers from side impacts from other UTVs, and provide a useful step into the machine. And of course, they make the buggy look pretty sharp too! Check out our video below, or if you are ready to order, CLICK HERE.


The Original Polaris RZR Tree Bar L-Bolt Kit

It all started with our first ever Polaris RZR Tree Bar design. Jeff Houser wanted to not only have the strongest tree bar on the market, but the strongest mounting system. Years have passed and our tree bars have been updated, but our mounting system remains the same.

We always like to offer replacement parts for our products, so we started offering the L-Bolt Hardware Kit by itself as a convenience to our customers. Little did we know, our mounting design would quickly become a popular upgrade for the stock Polaris tree bars as well as many other brands.

Although there are now others trying to replicate our patent-pending design, the Houser Racing L-Bolt Mounting System is still unmatched for its quality, durability, and strength. We machine the bolts in-house to insure the highest grade product while overseeing quality control, and have them special-coated to prevent rusting.

Polaris RZR XP 1000 Tree Bars-Nerf Bars-Side Bars-L-Bolt

Of course we would rather have you running our New R2 Tree Bars for the Polaris RZR XP 1000 and Turbo (Because you want your tree bars to be as strong as your mounting system 😉), but we do know our L-Bolt system will work with the Factory Polaris Tree Bars as well as many other brands, and we even did a quick install video for the factory tree bars:

What makes our mounting system so appealing?

  • It is so easy! You can mount your tree bars in 20 minutes or less.
  • They attach to the OEM mounting points
  • You do not have to drill into your frame. Now we do recommend drilling just the threads out for easier installation, but you can install them without drilling if desired.
  • The L-Bolt design is incredibly strong, meaning no more broken off bolts while on the trails!


Not convinced just yet? Check out these reviews from our customers!

“Excellent product that worked just as designed. Made it a lot simpler to install and remove tree kickers from my RZR.” – Braden B.

“These are so much better than the factory…! Well worth the money!” – Kyle R.

“I ordered the Polaris rock sliders and everyone said the Polaris mounting hardware was junk so don’t hesitate and go ahead and order the Houser kit and when I got it in, you could tell the difference in quality! Well worth the money and the install was a breeze!!!” – Duke A.


Ready to get a set of your own?

Click here for the 2-Seater Kit

Click here for the 4-Seater Kit

Slicast® Caster Adjustment

Suzuki LTR450 Slicast Balljoint view


One of the things we are best known for, is our Patented SLICAST® (US Patent # US 7,568,711) Caster Adjustment on our ATV a-arms. This adjustment was ground breaking, because it allows you to adjust you caster, separately from your camber. All of our current ATV a-arms are made with this feature included. Here are the top questions we receive about the Slicast® feature:

What does it mean to adjust caster on your ATV?

The caster adjustment is another adjustment for the location of the front wheels. The caster is the tilt of the wheel knuckle, or the location of the top ball joint over the lower ball joint. If the top ball joint is back towards the rear slightly further than the bottom ball joint, the caster is increased or positive. It is difficult to get an exact measurement for your caster if you do not have the Houser Slicast® A-Arms.

How do I change the settings on the Slicast® adjustment? 

You can make adjustments to your caster by adjusting the Slicast® Main Cam piece located by the ball joints on your upper a-arms. Loosen the jam nut, pop out the Slicast® Main Cam piece and turn it to your desired setting. Re-tighten the jam nut and you’re ready for riding.

What setting is best for the riding I do?

We can’t recommend what setting is best for you, it is about what you are comfortable riding. What we do recommend is to take your ATV out for a spin and try multiple settings to see what you like the best. Roll the ball joint all the way forward and ride it, roll it all the way back and ride it, and then put it on “zero” and ride it as well. That way you have a good idea for how it feels at all extremes, and you can fine tune from there.

Generally, motocross riders will turn the Slicast® Cam such that the upper ball joint is moved towards the rear, increasing caster and straight line stability. Cross country and trail riders will move their upper ball joints towards the front, decreasing caster and improving the way the ATV corners.

Note: The caster mostly affects your ATV’s ability to turn corners. If your ATV is set-up for going fast and straight, then adjusting caster for a flat, straight track would be the most ideal situation. When you test drive your ATV after making the caster adjustment, make sure you test it on a track most appropriate to your preferred conditions. Always use extreme caution after making adjustments until you are used to how the ATV turns. 

What are the degree increments between settings on the Slicast® Cam?

When the Slicast® Cam is rotated, the caster is adjusted in increments of .4°. The stock setting for the caster is 0°. Our Slicast® Cam allows you to adjust it to the rear up to -2.4°, or to the front up to 2.4°.


Regular Travel VS Long Travel


Regular Travel  Arms simply means that the a-arms retain the same shock mounting locations as OEM, so you are able to use your stock shocks. This is a popular option for riders who are not wanting to spend the extra money on aftermarket shocks, but still want a wider a-arm.

Long Travel means that the shock mounting location on the lower a-arm has been moved, giving you the ability to mount a longer, aftermarket shock. This is popular among cross country and motocross racers who need that extra travel for a better ride, giving them a competitive edge.

A common misconception about Regular Travel/Long Travel is that it affects the width of the a-arms, which is not the case.