The SuperATV Frame Stiffener for the 2018-2021 Polaris RZR RS1 reinforces the chassis and A-arm mounts when you add portals, a lift kit or bigger tires. Manufacturer highlights: Strengthens the weak spots on your RS1's frame; Provides the strength you need when adding portals, big lifts, or bigger tires; Perfect for hard work and hard riding.
Pairs with these SuperATV portal gear lifts: Polaris RZR RS1 4" Portal Gear Lift, Polaris RZR RS1 6" Portal Gear Lift, Polaris RZR RS1 8" Portal Gear Lift.
Key Features
- Strengthens the weak spots on your RS1's frame
- Provides the strength you need when adding portals, big lifts, or bigger tires
- Perfect for hard work and hard riding
- Adds support and stability
- Made of 4.5 mm heavy-duty steel plating
- Powder coated for durability
Built To Solve: RZR RS1 Frame Stress
- Frame stress from portals, lift kits and heavy tires
- Flex and fatigue at the A-arm mounts on hard hits
- Weak points that crack after big upgrades
Best For: Polaris RZR RS1 Owners
- Polaris RZR RS1 owners (2018-2021) installing portals or a lift
- Riders running bigger, heavier tires
- Owners who ride rough terrain and want a stronger frame
Specifications
- Material (per the manufacturer): 4.5 mm heavy-duty steel plating
- Finish: powder coated
- Included: the frame stiffener for the options you select. Anything not listed here is not included.
- Installation instructions: FS-P-RS1 (PDF)
Fitment
- Polaris RZR RS1 (2018-2021)
The manufacturer lists these applications by model and year. Fitment is not guaranteed on models or years not listed above; confirm your exact model before ordering.
FAQ
Which machines does this fit?
The Polaris RZR RS1 models and years listed in the fitment section above (2018-2021). Confirm your exact model before ordering.
Do I need a frame stiffener with portals?
Portals, lift kits and bigger tires add stress to the frame. A frame stiffener reinforces the weak spots so the frame can handle those upgrades.
Which portals does this pair with?
SuperATV GDP portal gear lifts for this machine, linked on this page.
Are install instructions available?
Yes. The manufacturer installation instructions are linked on this page.
Why SuperATV
SuperATV designs its frame stiffeners and portals for specific machines and publishes model-specific install instructions. Dunes 2 Dezert SXS ships SuperATV parts nationwide.
Reinforce Your RZR RS1
Confirm your Polaris RZR RS1 model and year above, then add it to your cart.
