When you stand next to this four-seater in the staging area, its sheer physical footprint feels closer to an off-road trophy truck than a traditional side-by-side. Reviewing the official polaris rzr pro r 4 specs shows that Polaris threw out the old rulebook entirely to engineer a factory machine capable of dominating open desert whoops right off the showroom floor.
Polaris RZR Pro R 4 Specs: The 2.0-Liter ProStar Fury Engine
The heart of this platform is the ProStar Fury 2.0-liter, naturally aspirated four-cylinder engine. Producing 225 horsepower and 152.8 pound-feet of torque, it represents a departure from the high-strung, turbocharged twin-cylinder motors that long dominated the sport UTV category. Automotive-style displacement delivers instant, linear power across the entire 8,500 RPM band without waiting for boost pressure to build.
A 16-valve DOHC setup paired with an advanced drive-by-wire throttle gives you precise low-speed modulation on technical climbs alongside brutal acceleration on flat lake beds. Coolant capacity sits at a massive 12.5 quarts to manage thermal loads during extended high-speed runs through Glamis or Johnson Valley.
Polaris paired this powerplant with a heavy-duty Pro-Performance CVT system. The primary and secondary clutches use wide, durable belts cooled by a high-flow dual-fan intake system that drops running temperatures significantly under heavy loads.
Three selectable throttle control modes let you tune response characteristics directly from the steering wheel. Sport mode sharpens throttle inputs for fast trail runs, Rock mode softens delivery to eliminate jerky pedal inputs over boulders, and Race mode opens full-throttle response instantly.
Suspension Travel and MaxLink Geometry
Taming wide-open terrain requires hardware that can soak up massive hits without upsetting chassis balance. Polaris built the front end around dual A-arms with a three-piece stabilizer bar, delivering 22.25 inches of usable wheel travel. The rear uses a boxed trailing arm design paired with an innovative MaxLink system that adds a toe-link to stabilize rear wheel geometry throughout all 24.5 inches of rear travel.
Dynamix DV Active Valve Control
Higher trims feature the Fox 3.0 Live Valve X2 internal bypass shocks integrated into the proprietary Dynamix DV system. This computer brain gathers telemetry data from independent wheel sensors, accelerometers, and steering inputs two hundred times every second to adjust both compression and rebound damping on the fly.
In my experience behind the wheel, hitting a hidden wash at sixty miles per hour usually puckers every passenger, but Dynamix stiffens the front corners before the chassis can bottom out.
Selectable Terrain Modes
You can toggle between four preset suspension profiles on the dash screen:
Comfort mode softens valving to float over choppy washboard roads without jarring passenger spines. Track mode flattens body roll for tight cornering on hardpack surfaces. Rock mode lets axles articulate freely for maximum traction, while Baja mode stiffens all four corners to handle repetitive G-outs at high speeds.
Physical Dimensions, Weight, and Trail Clearance
Evaluating the polaris rzr pro r 4 specs reveals a machine built specifically for wide spaces. The overall width measures a full 74 inches, creating a broad, stable stance that resists tipping on steep off-camber lines. The vehicle measures 165.5 inches from bumper to bumper, resting on a stretched 133.5-inch wheelbase that smooths out whooped terrain.
- Ground Clearance: 16.0 inches under full load
- Dry Weight: 2,499 pounds on base trims; up to 2,580 pounds on Ultimate trims
- Payload Capacity: 900 pounds total distributed across seats and cargo
- Rear Cargo Box Capacity: 300 pounds
- Fuel Tank Volume: 12.0 US gallons
- Standard Wheel and Tire Package: 32×10-15 Maxxis Rampage Fury 8-ply tires on 5-lug cast aluminum wheels
Weight and Transport Requirements
That 2,500-plus-pound dry weight means you cannot treat this vehicle like an older sport buggy. Wet trail weight with four adults, extra fuel, tools, and a spare tire quickly approaches 3,500 pounds. You will need a tandem-axle trailer rated for at least 5,000 pounds gross vehicle weight to tow safely.
Tight fifty-inch mountain trails are completely off-limits for this wide-track machine.
Interior Space and Four-Passenger Comfort
Four full-sized adults can ride in the Pro R 4 all day without feeling cramped. Polaris extended the rear seat brackets back and lowered the rear seat pans, offering legitimate legroom for riders well over six feet tall. Bolstered bucket seats feature four-way manual adjustment along with tilt and telescoping steering up front.
Ride Command and Navigation
The dashboard centers around a seven-inch glove-touch Ride Command display. This interface integrates GPS trail mapping, group ride tracking via cellular or vehicle-to-vehicle antennas, front and rear camera feeds, and real-time engine diagnostics. You do not need cell service to track trail waypoints or monitor your convoy members across remote desert trails.
Audio comes courtesy of an integrated Rockford Fosgate Stage 4 sound system on Ultimate models, pushing clear audio through four speakers and an enclosed ten-inch subwoofer even over high-RPM engine noise.
Driver-Focused Controls
All primary drive switches reside on the center stack and steering wheel buttons. You can toggle between 2WD, 4WD, and 4WD Lock without removing your hands from the wheel. The sealed full doors feature durable automotive-style double latches that eliminate rattles over rough washboards.
Common Trail Mistakes and Ownership Costs
What most owners get wrong during their first season is underestimating tire pressure sensitivity and belt maintenance on heavy machines. Because the Pro R 4 weighs significantly more than two-seat turbo models, running tire pressures below twelve PSI on rocky trails can cause pinch flats or wheel lip damage despite the 8-ply tire rating.
Fuel consumption is another reality check you must prepare for. The 2.0-liter naturally aspirated engine drinks fuel rapidly when driven aggressively in deep sand dunes. While casual trail riding yields roughly twelve to fourteen miles per gallon, aggressive dune climbing drops economy to six or seven miles per gallon. That 12-gallon tank empties quickly during spirited group runs.
High horsepower and massive suspension travel also put heavy demands on driveline joints. Inspect your CV boots, ball joints, and tie rods after every desert weekend. Flushing the front differential fluid and transmission lubricant every fifty hours keeps the five-lug automotive-style hubs and axles turning smoothly without premature bearing wear.
The massive 1,700-watt stator provides ample electrical overhead for light bars, communications gear, and winches without draining the battery.
Trim Levels
Polaris offers the four-seat Pro R in multiple trim configurations to suit distinct driving preferences and budgets:
- Sport: Baseline trim featuring Walker Evans 2.5/3.0 needle shocks, analog gauges, standard doors, and raw aluminum styling.
- Premium: Adds the Ride Command display system, premium paint schemes, four-point harnesses, and upgraded interior LED lighting.
- Ultimate: Complete package equipped with Fox 3.0 Live Valve Dynamix DV active suspension, Rockford Fosgate Stage 4 audio, roof, and front/rear cameras.
Choose the Ultimate trim if you run high-speed desert washes where active suspension valving makes a difference, or pick the Premium trim if you plan to build custom aftermarket suspension anyway.
Frequently Asked Questions
What is the top speed of a Polaris RZR Pro R 4?
The Polaris RZR Pro R 4 achieves an electronically governed top speed of approximately 85 to 90 miles per hour from the factory. High-speed stability comes from its long 133.5-inch wheelbase and wide 74-inch stance.
What type of fuel does the RZR Pro R 4 require?
Polaris recommends running 91-octane premium unleaded gasoline in the ProStar Fury 2.0-liter engine to achieve its rated 225 horsepower output. The engine management system can adjust timing for lower octane in emergencies, but performance drops.
What wheel bolt pattern does the Pro R 4 use?
The Pro R 4 uses an automotive-style 5×4.5 inch (5×114.3mm) wheel bolt pattern with 12mm wheel studs. This departure from the older 4x156mm pattern allows stronger hubs and compatibility with automotive off-road wheel sizes.
Can the Pro R 4 fit on standard 50-inch or 60-inch trails?
No, the Pro R 4 cannot legally or physically access width-restricted 50-inch, 60-inch, or 64-inch recreational trails. Its fixed 74-inch track width limits riding to open desert areas, dunes, wide fire roads, and unrestricted off-road parks.