UTV SHOCK REBUILD SERVICE
In-House Shock Rebuild, Re-Valve & Service for Fox, King, Elka, Walker Evans, Bilstein, Icon, Carli & Cognito
MST Motorsports provides in-house UTV shock rebuild service in Washington, Utah, serving St George and Southern Utah riders. We rebuild Fox, King, Elka, Walker Evans, Bilstein, Icon Vehicle Dynamics, Carli and Cognito shocks — the major brands found on Polaris RZR, Can-Am Maverick, Kawasaki KRX and other powersports platforms — on our own bench: teardown, inspection, reseal, re-valve and nitrogen recharge. Our factory-trained, certified technicians carry 80 years of combined experience and handle the re-valve and the suspension setup that follows it. For trucks, Jeeps and Broncos, see our truck and Jeep shock rebuild service.
Shocks control how your machine responds to every bump, rock, dip and landing, so worn seals and degraded oil show up as unpredictable handling long before anything visibly leaks. In Southern Utah's desert conditions — especially at Sand Hollow — that wear happens faster than most riders expect.
What a difference.
Brent
Google review — shock rebuild customer
Complete Shock Rebuild Process
A full in-house shock rebuild includes:
- Disassembly & Inspection — Complete disassembly with inspection of shaft condition, body bore, and all internal components
- Seal & Bearing Replacement — Fresh seals, bushings, and bearings to restore leak-free operation
- Internal Component Evaluation — Assessment of piston, shim stacks, and valving components for wear or damage
- Oil Replacement — Fresh shock oil at the proper viscosity for your application and conditions
- Bladder/IFP Inspection — Inspection and replacement of internal floating pistons and bladders as needed
- Reassembly & Nitrogen Charge — Precision reassembly with proper nitrogen pressure for gas-charged shocks
- Testing — Stroke testing to verify consistent, leak-free operation
Shock Re-Valve & Custom Tuning
Re-valving changes the internal shim stacks that control how fluid flows through the shock — adjusting compression and rebound damping characteristics to match your specific riding conditions, vehicle weight, and performance goals.
Factory valving is a compromise, so a machine that runs Sand Hollow's deep sand and high-speed desert needs different damping than one that mostly rock crawls at low speed. Re-valving during a rebuild changes ride quality and handling without buying new shocks.
We set up valving based on your specific machine, riding terrain, and performance objectives.
Brands We Rebuild In-House
Fox Racing Shox
- • Fox 2.0 Performance Series
- • Fox 2.5 Factory Series
- • Fox 3.0 Factory Series
- • Fox Live Valve (service)
- • Fox Podium and internal bypass
King Shocks
- • King 2.0 Race Series
- • King 2.5 Race Series
- • King 3.0 Race Series
- • King OEM Performance
- • King coilover and bypass
Elka Suspension
- • Elka Stage 3
- • Elka Stage 4
- • Elka Stage 5
- • Elka Legacy Series
Walker Evans Racing
- • Walker Evans Velocity Series
- • Walker Evans Racing Series
- • Walker Evans needle valve shocks
Desert Conditions & Shock Maintenance
Southern Utah desert conditions are hard on shock absorbers: fine sand works past the shaft seals and contaminates the oil, high ambient temperatures thin it, and washboard desert roads keep the shaft moving fast enough to build heat.
Regular shock service includes oil changes and seal inspection according to the guidance for the machine and its shock components. For machines used at Sand Hollow and in desert conditions near St George and Washington, Utah, follow the manufacturer's applicable severe-use guidance and have changes in condition inspected.
Signs Your Shocks Need Service
Shock wear is gradual, and the common signals are a floaty or wallowy ride, nose dive under braking, bottoming out on bumps that used to feel controlled, oil weeping on the shock body, or a harsh ride over whoops.
On UTVs and side-by-sides the change shows up at speed, when the rear end steps out and the front pushes through turns. If ride quality has changed, or you notice leaks or damage after hard off-road use, have the shocks inspected.
Ride Quality & Vehicle Control
Shocks control how the machine handles, how the tires stay planted and how well the suspension absorbs terrain, not just how comfortable the ride is. A side-by-side on tired shocks loses composure in whoops, bottoms out in the dunes and puts additional load on every other suspension component.
Keeping shocks in working condition protects vehicle safety, performance, and component life. Regular service costs less than replacing shocks, and less than repairing the damage worn shocks cause elsewhere in the suspension.
Alongside Fox, King, Elka, Walker Evans, Bilstein, Carli and Cognito, we rebuild and re-valve Icon Vehicle Dynamics and Falcon Shocks shocks on the same bench. We also install and service suspension components from Shock Therapy, Zollinger Racing and Geiser Performance.
Automotive repair and maintenance at our Washington, Utah location.
Brakes, tires, alignments and diesel service for trucks, Jeeps and SUVs.
Auto repair and maintenanceFrequently Asked Questions
Do you rebuild shocks in-house or send them out?
We rebuild Fox, King, Elka, Walker Evans, Bilstein, Icon Vehicle Dynamics, Carli and Cognito shocks in-house at our Washington UT facility, which keeps quality control in our hands.
Should I rebuild my UTV shocks or buy new ones?
For shocks from Fox, King, Elka, Walker Evans, Bilstein, Icon Vehicle Dynamics, Carli or Cognito, rebuilding is usually the better option because a full rebuild restores the original damping performance. We rebuild all eight brands in-house on our own bench in Washington, Utah.
How often should I rebuild my UTV shocks?
Follow the service guidance for your machine and its specific shocks, including any guidance for severe use. Sand Hollow dust, sand and washboard trails make condition checks important. Have leaks, damaged components or changes in ride quality inspected rather than waiting for a generic hour limit.
What shock brands does MST Motorsports rebuild?
We perform in-house shock rebuilds for Fox, King, Elka, Walker Evans, Bilstein, Icon Vehicle Dynamics, Carli, and Cognito — the major brands used on powersports platforms. Our service covers both reservoir and non-reservoir shocks, including bypass shocks and coilover configurations.
What does a shock rebuild include?
A full rebuild includes complete disassembly, shaft and body inspection, seal and bearing replacement, fresh shock oil, bladder inspection/replacement, internal component evaluation, and reassembly to manufacturer specifications. We also perform nitrogen charging on gas-pressurized shocks.
Can you re-valve my shocks for Sand Hollow riding?
Yes. Re-valving changes the internal shim stacks to modify compression and rebound damping characteristics. For Sand Hollow riders, we typically set up valving for high-speed desert stability while maintaining good low-speed compliance for rocky trail sections.
What shock upgrades do you recommend for Sand Hollow?
For Sand Hollow desert riding, we recommend Fox 2.5 or King 2.5 remote reservoir shocks with valving tuned for high-speed sand whoops and dune launches. We can re-valve your existing shocks or help spec a new setup.
How much does a UTV shock rebuild cost?
Shock rebuild cost depends on the shock type (standard or reservoir), the brand, and whether re-valving is included. Call MST Motorsports at 435-256-8899 with your shock brand and model and we will confirm what the work involves.
Book Service
Call (435) 256-8899 or . Serving Washington, St George, Hurricane, and all of Southern Utah.