Beef Up Your Knuckles
If you like to ride solo on your RS1, you need to know you and your machine can get through anything. Upgrade to SuperATVs Billet Rear Knuckles for the Polaris RZR RS1, and be confident knowing that they give you unmatched strength for a more reliable ride.

Virtually Two Times Stronger than Stock
These arent ordinary spindles, theyre made with 7075-T6 billet aluminum which outperforms your factory knuckles easily. The yield strength of 7075 is 73,000 psinearly double that of the 6061s 40,000 psi yield strength on stock. Whether youre racing or adventuring, all that strength means you can count on them to survive the ride.

Excellent Compatibility
We made these knuckles to match OEM specifications so that any suspension setup you have will fit. We even trimmed down some unnecessary material from stock specs to improve fitment and range. Basically, we made installation as easy as possible, no matter what youve got on your RS1.

WARNING:This product can impact machine operation. Customer and/or user is responsible for ensuring that this product is compatible with their machine as currently configured, properly installed, and understands any impact this product has or might have on the machine’s operation.

California Proposition 65 Warning
WARNING:This product may contain a chemical known to the State of California to cause cancer or birth defects or other reproductive harm.

Features:

• Made of 7075 billet aluminum
• Virtually two times stronger than factory knuckles
• Compatible with stock and aftermarket suspension and wheel bearings
• Includes left and right rear knuckles

VEHICLE FITMENT

Polaris RZR RS1 : 2018+

Replacement for OE #’s:5140634, 5140635, 5140585, 5140586

INSTALLATION

Instructions