SuperATV Polaris RZR RS1 4" Portal Gear Lift
- Available with billet or cast aluminum housing
- Cool, quiet, precision ground gears made from 9310 alloy billet steel
- Increases width by 4 in. per side (8 in. total)
- 1.5 in. diameter 4340 hardened steel drive shaft
- No leak bearings and seals
- Universal hub fits all major bolt patterns
- Comes complete with all hardware, backing plates, brakes lines and instructions
Wheel Requirements:
- 14” or larger wheel required
- 14” & 15” wheels cannot exceed 4-1/2” backspacing
- 16” and larger wheels cannot exceed 5” backspacing
- If using the factory 14" wheels, you must run 2" wheel spacers.
- Not compatible with dual beadlock wheels
Gen 3 Portals are Geared for All
SuperATV’s GDP 4” Portal Gear Lift for the Polaris RZR RS1 is Geared for All. What do we mean by that? Our 4” portal lift is available with 15% or 30% gear reductions and cast or billet housings. That means you can optimize your ride to fit your style.
Perfect for Mud
Get a 30% gear reduction and start flingin’ mud. With a massive boost to torque, you can turn bigger tires that chew through the thickest bounty holes. When you gear down and go big, your machine will turn into a mud monster. Plus, with a 30% gear reduction you can still use it on the road and tear up trails and rocks.
Perfect for Rocks
Put 4” portals and a 30% gear reduction on your machine and get the torque you need crawl over rocks like they’re not even there. You’ll have the clearance to get over anything without scratching up your skid plate, and you’ll have room to run bigger tires. These portals are built for boulders.
Perfect for Trails
Get 4” portals and a 15% gear reduction on your Polaris RS1 and take on the trail less traveled. You’ll keep that high speed and leave your friends in the dust when hit a hill or dirt shelf. It’ll bring out your UTV’s true power.
Learn more about how tire size and gear reduction can unleash your machine’s potential.
Better Gears
Our gears are precision ground and made with 9310 billet steel alloy for high strength and high speed. That means they’re cool and quiet even when you’re hammering down the throttle on the road, and they have strength to withstand every ride.
Stronger Housings by Design
We make our housings stronger by design. We know what makes a portal box break and what doesn’t. Whether you choose cast aluminum housings or USA-made 6061 billet aluminum housings with a gorgeous finish you can only get with CNC machining, you know you’re getting the strongest boxes in the business—they’re built with experience. And they’re built with confidence.
- Our housings are reinforced in all the right places
- They’re built with better oil flow and gearing forces in mind
- There are no gimmicks and no vents because vents do more harm than good—we know because we tested them
Advanced Gaskets and Seals
Whether you go with cast or billet, both housings use:
- Advanced gaskets with excellent oil resistance and a lower deterioration rate than Kevlar gaskets
- A sealed input gear and double-lipped output seal
- 100% sealing coverage throughout so you can forget about oil leaks
Top-Rated Customer Service
Still need a little help getting exactly what you need? We’ve got a dedicated team just for portal support. Give us a call so we can get the perfect set of portals in your hands today.
| Polaris RZR RS1 Portal Gear Reduction Recommendations | ||
|---|---|---|
| Tire Size | Required Suspension Setup with 4" Portals | Recommended 4" Portal Gear Reduction |
| Up to 34" | Stock | 15% |
| Gear reductions listed are general guidelines to maintain factory top speed. Installing a larger than recommended gear reduction will result in extra torque and lower top speed. Give us a call for more information. | ||
FITMENT:
- Polaris RZR RS1 : 2018+
NOTE: Wheels need to have a center hole of at least 3.25" (82.55mm) or require a 1” wheel spacer.
