When Polaris introduced the redesigned RZR XP for 2024, Shock Therapy developed a range of suspension, steering and chassis parts for the new platform. The original announcement covered dual-rate springs, custom shock valving, FOX RC2 replacement shocks, steering components, sway bars and limit straps. These products apply to the 2024-and-newer RZR XP platform; confirm the exact model and configuration before ordering.
The 2024 launch lineup included two- and four-seat Sport, Premium and Ultimate models, each with Walker Evans Racing shocks. For background on the redesign, see our 2024 RZR XP overview and Sand Mountain dune review.
RZR XP Spring and Shock Upgrades
Dual-Rate Spring Kit
Shock Therapy selects its RZR XP dual-rate spring kit around vehicle load, accessories, occupants and riding style. Proper spring selection can help restore ride height on an equipped machine and improve chassis control. Spring rate and shock damping solve different problems; our springs versus valving guide explains how they work together.
Ride Improvement System
The Ride Improvement System (RIS) modifies the internal valving of the factory shocks to address compliance and control for the owner’s use. It is an option for riders who want to keep the Walker Evans shocks. Ask Shock Therapy to confirm the application and calibration for your specific RZR XP.
FOX RC2 Replacement Shocks
For riders who want a replacement shock package, Shock Therapy offers FOX RC2 shocks for the 2024-and-newer RZR XP with custom valving and a matched spring setup. The package uses 2.5-inch shock bodies front and rear, with separate high- and low-speed compression adjustment, rebound adjustment and bottom-out control.
We later tested the FOX RC2 setup at Sand Hollow. Compared with the original 2.0-inch front and 2.5-inch rear Walker Evans shocks, it felt more compliant over small bumps and handled G-outs with better control in our test. That hands-on result is specific to the setup and terrain we drove.
Steering, Radius Rods and Sway Bars
Shock Therapy’s RZR XP range includes ultimate tie rods with its Bump Steer Delete pin kit, radius rods and a billet steering rack. These parts target strength and steering precision for owners who ride rough terrain or add larger, heavier tires. Check the product options for two- or four-seat fitment and the vehicle’s steering configuration.
The catalog also lists front sway bar components, sway bar link kits and a rear sway bar option. Sway bar tuning changes how much the chassis resists roll and can affect articulation, so the best setting depends on whether the machine spends more time at speed or crawling over uneven terrain. Review the specific kit contents and fitment in the current RZR XP collection.
Limit Straps and Choosing an Upgrade
Shock Therapy’s RZR XP limit strap kit is designed to manage full suspension extension and reduce harsh top-out, particularly when heavier wheels and tires increase the load on the shock. The product URL carries an older name, so select the listing marked for the 2024-and-newer RZR XP and verify your configuration.
For a loaded trail machine, begin with a spring package matched to its actual weight. If the factory shocks need different damping, consider RIS. Riders who regularly push the XP through fast chop, dunes and hard G-outs may benefit from the FOX RC2 package we tested. Steering and chassis parts address separate durability and handling needs. Browse Shock Therapy’s current RZR XP lineup for fitment and product details.
