Polaris RZR RS1 8" Portal Gear Lift


SKU: Item-PGH8-1-33-303-B#RS1 Categories: , , Tag:
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Gear Down and Go Big
SuperATV’s GDP 8” Portal Gear
Lift for the Polaris RZR RS1 is geared down so you can go big. It gives you a
lift and a 45% gear reduction in one box. Get the clearance to run bigger
tires and the torque you need to turn them. The lift and gear reduction are in
the hub, so they maintain suspension geometry and reduce drivetrain stress.
With huge clearance, huge torque, and optional billet aluminum housings, you
can install monster tires to take your torqued-out single-seater anywhere.

Perfect for Mud
With 8” portals and a 45%
gear reduction, you get clearance for huge tires and a massive boost in
torque. It’ll turn monster tires like they’re stock. Your RS1 will be a
single-seater mud monster that can’t be stopped. Now the challenge is finding
a mud hole tough enough for you.

Perfect for

Get tons of torque to crawl over any rock or boulder you
can find by installing an 8” portal box with a 45% gear reduction. With that
much power, rock shelves will feel like speed bumps and boulders feel like
pebbles. With 8” of clearance, you can run monster tires and crawl through any
rock garden you find.

Learn more about how tire size and gear reduction
can unleash your machine’s potential.


Our gears are precision ground and made with 9310 billet
steel alloy. They’re designed to take all the torque and abuse you can give
them without chipping teeth or blowing up. Our precise design and
manufacturing mean they’re cool and quiet even when you’re hammering down the
throttle in the mud hole.

Billet Housings
Choose billet or cast aluminum housings to finish your portals. Our billet
housings are CNC machined right here in Madison, Indiana and give you
increased strength and consistency over cast. Plus, they look good painted
with mud.

Reinforce Your UTV with a Frame

We highly recommend running a SuperATV Frame Stiffener
with your 8″ Portal Gear Lift. The stock frame just doesn’t have what it
takes. Bump too hard and the OEM frame will bend. Trust us — we’ve done it. A
frame stiffener reinforces your frame enough to let you ride your 8″ portals
with monster tires and no worries.

Polaris RZR RS1 Portal Gear Suspension
Max Tire Size Required Suspension
Setup with 8″ Portals
40″ Stock
42″ 1.5″ Forward Front A-Arms
44″ 1.5″ Forward Front A-Arms and 3-5″ Lift Kit
50″ 7-10″ Lift Kit
Gear reductions listed are
general guidelines to maximize torque and maintain factory top speed. A larger
than recommended gear reduction will result in more torque and lower top
speed. Give us a call for more information.

Patent # 11,299,042


  • Available with billet or cast aluminum housing
  • Cool, quiet,
    precision ground gears made from 9310 alloy billet steel
  • 1.5 in.
    forward and rear offset
  • Increases width by 4 in. per side (8 in.
  • 1.5 in. diameter 4340 hardened steel driveshaft
  • Housings use advanced gaskets and rubber O-rings that don’t let anything
  • Universal hub fits all major bolt patterns
  • Gear
    reduction reduces stress on your drivetrain


  • 22″ or larger wheel required
  • Wheels
    cannot exceed 5″ backspacing


  • Polaris RZR RS1 : 2018+

NOTE: Wheels need
to have a center hole of at least 3.25″ (82.55mm) or require a 1” wheel

Additional information

Portal Housing Material

Billet, Cast