Free Shipping on UTV & SXS Spring Kits & Suspension Upgrades
Race -Tested Engineering from California
Rated 4.9 ★ by Real Riders
Race-Tested Suspension Kits for Polaris & Can-Am
From 70 championships and 300 race wins to your garage, SDG spring kits keep your ride smooth, and ready for anything — dunes, trails, or whoops
Rated 4.9/5 on
Brands we service...
Featured Products
Shop by Vehicle
Shop Polaris
From RZR Pro-R and Pro-S to XP1000 and Expedition, SDG Polaris upgrades are built for every line: dunes, trails, and every drop in between. Race-tuned spring kits and shock rebuilds keep you planted in whoops, composed in corners, and smooth on the trail. Shop now! Tuned for power, precision, and control.
Shop Now
Shop Can-am
For the Maverick R or X3, SDG suspension transforms your ride from stock to race-ready. Hit the dunes with confidence or tackle rocky switchbacks with balance and traction. Every kit’s tested under race load and refined for weekend rides. Shop now! Performance built for the sand and the trails.
Shop Now
Shop Kawasaki
From the Teryx4 H2’s weight and wheelbase to demanding passenger loads, SDG upgrades bring control and confidence to every ride. Race-proven spring kits and chassis upgrades improve stability, reduce deflection, and keep the Teryx composed. Shop now! Built for durability and control.
Shop Now
From Garage Builds to Race-Winning Suspension — The SDG Story
SDG began in a California garage with one mission: build suspension that wins races and elevates everyday rides. Today, we’re the trusted team behind 74 championships and 300+ race wins — and the same engineering powers every Polaris RZR, Can-Am Maverick, and SXS spring kit we ship.
- Real Race Parts, No Marketing Fluff — The Same Suspension We Run
- Click, Ship, Ride — Ordering Your Upgrade Should Be That Simple
- Proof is on the Podium — Experience for yourself
- 74 championships
- 300 race wins
Rated 4.9/5 on 
google
Jason was nothing less than awesome in helping me with my shock problem. From taking my phone call directly, listening to my situation, and ultimately hooking me up with the repair I needed he went above and beyond what you would expect. I can honestly say that after my experience at SDG I won't trust anyone else with servicing my shocks.
@VFATAL 
Verified Customer
Verified Customer
These guys are awesome. Tod is such a stand-up guy. Thanks man.
@VFATAL Verified Customer
Amazing customer service! Highly recommended them for UTV shocks
@VFATAL Verified Customer
“Professional service, Very informative and quick turn around. I test drove my RZR PRO R and it rides awesome 👌 Thanks SDG”
@VFATAL Verified Customer
Best shock tuning in the industry!
@VFATAL Verified Customer
Mucha rapidez en su servicio exelente trato
@VFATAL Verified Customer
Shock service
We don’t just service shocks — we rebuild them the way we’d do our own. Every SDG shock rebuild and revalve happens in-house, built to bring back control, comfort, and adjusted ride height.
learn more
our Story
Founded in El Cajon, California, SDG started as a race support operation focused on one thing: making vehicles faster, more controlled, and more reliable in the harshest off-road environments on earth. What began as hands-on work for competitive desert racers quickly grew into a full-scale suspension engineering program trusted by championship-level teams and serious drivers alike.
Learn More
Custom Race setup
No two rides are the same — and neither are our setups. We dial in your suspension based on vehicle weight, terrain, and how you drive, giving you traction and control that feels built just for you. From dunes to desert runs, we’ll tune it like it’s our own race build.
learn more
