Polaris RZR Pro R / Turbo R Billet 7075-T6 Rear Knuckle Kit

Polaris RZR Pro R / Turbo R Billet 7075 Rear Knuckle Kit

The AVID Racing Billet Rear Knuckle Kit for the Polaris RZR Pro R and Turbo R is built for cars that are driven at true race pace. Factory cast rear knuckles and rubber bushed joints flex under load, changing alignment through the travel and making the rear of the car unstable at speed, as well as require frequent replacement. Our solution is a fully CNC machined 7075-T6 billet aluminum rear knuckle with large 7/8" "FK Style" spherical bearings and misalignments pre-installed and ready to bolt on.

Designed for high-horsepower desert, short-course, and dune cars, these billet rear knuckles dramatically increase rigidity, keep toe and camber where you set them, and give the rear of the RZR a planted, confidence-inspiring feel.

What This Means on the Car

• Stronger, Stiffer Rear End: 7075-T6 billet aluminum construction resists flex and deflection far better than cast OEM knuckles.
• Stable Alignment at Speed: Large 7/8" spherical bearings and proper misalignments keep toe and camber consistent through the full range of suspension travel.
• Improved Handling & Confidence: Reduces rear-steer and wandering at high speed, giving the car a more predictable, “on rails” feel.
• Race-Ready Durability: Built to handle big tires, heavy power, and aggressive driving in desert, rocks, and dunes.

Key Features

• CNC machined from high-strength 7075-T6 billet aluminum
• Engineered specifically for Polaris RZR Pro R and Turbo R platforms
• 7/8" spherical bearings for maximum load capacity
• High-strength misalignment spacers pre-installed
• Direct bolt-on replacement for factory rear knuckles
• Designed for use with performance radius rods and trailing arms

Included in Kit

• Left and right 7075-T6 billet rear knuckles
• Pre-installed 7/8" spherical bearings
• Pre-installed misalignment spacers
• Hardware required for knuckle assembly (where applicable)

Bottom Line: The AVID Polaris RZR Pro R / Turbo R Billet 7075 Rear Knuckle Kit is built for drivers who have outgrown the limits of the stock cast knuckles. If you’re pushing big speed, big power, and big tires, this is the rear knuckle package that keeps the car straight, planted, and ready to run flat out.