Build around your ride

Polaris RZR RS1

One seat. Your line. Your RS1 build. Explore tuning, chassis and cockpit details for a project centered on the driver.

Choose your next upgrade. Confirm model, year and fitment on each product before ordering.

Start My Garage
Explore the platform

Select a numbered marker or browse the categories below.

Polaris RZR RS1 with centered driver and side-mounted spare tire, complete vehicle on a dirt trail

RS1 is a dedicated single-seat platform introduced for 2018. Shared engine or suspension ancestry does not establish XP 1000 parts compatibility.

Your next upgrade

Find your direction

ECU & tuning

Choose the ECU approach and fuel first. Compare what each package includes, then match calibration to the hardware already on your build.

Exhaust

Compare the complete exhaust path, not just the outlet. Identify existing headers or turbo connection, sensor provisions and the calibration requirements of the selected system.

Suspension

Record current shocks, springs, arms and electronic controls. Match the project to tire size, passengers, cargo and terrain before choosing the next component.

Wheels & wheel packages

Compare bolt pattern, diameter, width and offset together. Confirm brake clearance and whether a listing includes wheels only or a complete wheel-and-tire package.

Tires

Choose around terrain and intended use, then check size, wheel compatibility and vehicle clearance. Review front/rear positions and whether the price is per tire or package.

Clutch & drivetrain

Begin with the actual transmission and drive system. Record tire size, engine changes and existing clutch components before comparing belts, clutch parts or driveline hardware.

Brakes

Identify the current calipers, rotors and wheel clearance. Compare replacement dimensions and hardware so the service plan includes the parts the selected job requires.

Lighting

Plan where the light mounts, where the wiring runs and how it is switched. Compare beam pattern, mounting dimensions and the electrical requirements in each listing.

Body & protection

Start with the exact body and seating layout. Compare coverage, mounting points and access for service before choosing panels, guards or protection pieces.

Steering & interior

Plan around the driver’s position and existing equipment. Check mounting interfaces, control clearance and what must stay accessible in the cockpit.

Audio & communications

Decide who needs to hear and communicate, then plan mounts, power and cable routing. Check the exact components included in a kit before adding accessories.

Make the driver the starting point

  • Check cockpit space and mounting points when planning controls, communications or other driver equipment.
  • For wheels, tires and suspension, record the current setup and any modified arms or axles before comparing products.
  • For ECU work, provide the exact year, current electronics and fuel requirements rather than selecting solely by the ProStar engine name.

Platform reference

2018 launch reference
Single centered seat; 64-inch platform

Before choosing parts

Is the RS1 a two-seat RZR with one seat removed?

No. Polaris introduced it as a dedicated centered-cockpit, single-seat model. Use RS1-specific fitment.

Can I use XP 1000 tuning or chassis parts?

Only if the selected product explicitly lists your RS1 application. Similar component origins are not a fitment guarantee.

Save your year, trim and current modifications in My Garage. To plan the work, explore dyno testing and tuning.

Manufacturer reference