Mon–Fri: 8:00am – 5:00pm

UTV SHOCK REBUILD SERVICE

In-House Shock Rebuild, Re-Valve & Service for Fox, King, Elka & Walker Evans

MST Motorsports provides in-house UTV shock rebuild service in Washington, Utah, serving St George and Southern Utah riders. We rebuild Fox, King, Elka and Walker Evans 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 more than 80 years of combined experience and handle the re-valve and the suspension setup that follows it.

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 — including oil changes and seal inspection — is the most cost-effective way to maintain ride quality and extend the life of expensive shock absorbers. We recommend 40–60 hour service intervals for machines used at Sand Hollow and in desert conditions near St George and Washington, Utah.

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 the shocks have more than 40–60 hours of hard off-road use, have them 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 and Walker Evans, 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 maintenance

Frequently Asked Questions

Do you rebuild shocks in-house or send them out?

We rebuild Fox, King, Elka and Walker Evans 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 or Walker Evans, rebuilding is usually the better option because a full rebuild restores the original damping performance. We rebuild all four brands in-house on our own bench in Washington, Utah.

How often should I rebuild my UTV shocks?

For UTVs used in Southern Utah desert conditions, we recommend shock service every 40–60 hours of operation. Deep sand, fine dust, and washboard desert trails accelerate seal wear and contaminate shock oil faster than in cleaner conditions. Machines ridden hard at Sand Hollow may benefit from even more frequent service.

What shock brands does MST Motorsports rebuild?

We perform in-house shock rebuilds for Fox, King, Elka, and Walker Evans — 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.