R1 tender springs kill the harsh chatter over small bumps that stock secondary springs can't control, and the swap is a driveway job if you've got a jack, a torque wrench, and an evening to spare.
- R1 tender springs soften small-bump chatter without changing your main spring rate — install the kit matched to your model.
- Swapping a tender spring kit is a per-corner job: jack, shock spanner, torque wrench, and the correct preload spacer.
- Match seat count and shock brand exactly — a 2-seat kit on a 4-seat RZR throws off rear ride height fast.
- Skip any tender spring swap that skips the preload spacer step; that's the #1 cause of clunk at full droop in 2026 builds.
Why this matters
Every UTV shock runs two springs: the big main spring that handles real hits, and a small tender spring that keeps the main spring seated and absorbs the first inch or so of travel over chop, whoops, and washboard. Stock tender springs on most Polaris RZR, Can-Am Maverick X3, and General XP models are built cheap. They either coil bind almost immediately or barely compress at all, which is why stock UTVs feel harsh on small terrain even when the main suspension is fine.
R1 Industries stocks tender spring swap kits built to fix exactly that problem without touching your main spring rate or your shock valving. Swap the tender spring, keep everything else the same, and the ride over rough trail smooths out noticeably. Check the full tender spring and suspension lineup before you order to confirm the kit matches your exact shock brand.
What you'll need
- Floor jack and jack stands rated for your UTV's weight
- Metric socket set and a torque wrench
- Shock spanner wrench for the preload collar
- Spring compressor if your shock retains the tender spring under load
- A tender spring swap kit matched to your exact model, seat count, and shock brand
- Shop rags and a bench to lay the shock down clean
The steps
1. Confirm fitment before you touch a wrench
Tender spring kits are sold by model, seat count, and shock brand — Walker Evans, Fox, and stock shocks all use different spring diameters and preload collars. Pull up your VIN or dash sticker and confirm seat count and shock brand before ordering.
Common mistake: ordering a 2-seat kit for a 4-seat cage. The rear corners carry more weight on a 4-seat machine, and the wrong spring rate squats the back end instead of smoothing it out.
2. Lift and support the corner
Jack under the frame rail, not the A-arm, and set a jack stand under the frame near the corner you're working. This lets the shock hang free with full range of motion.
Common mistake: jacking under the A-arm compresses the shock before you've started, which makes the tender spring harder to access and can put uneven load on the ball joint.
3. Remove the shock assembly
Unbolt the upper and lower shock mounts and pull the shock off the machine. Set it on a bench, and keep the bushing sleeves and hardware in order — they're small and easy to lose in gravel.
Expected outcome: the full shock assembly off the vehicle, ready to work on flat instead of upside down under the fender.
4. Compress the main spring and expose the tender spring
Use a spring compressor or the shock's own preload collar to back off tension until the factory tender spring is exposed near the shock body. This is the small spring, not the big coil doing the heavy lifting.
Common mistake: cranking the main spring past its free length to get more clearance. That stresses the spring unnecessarily and can void a manufacturer warranty on the shock itself.
5. Swap in the new tender spring and spacer
Slide the old tender spring off, install the new one from your R1 tender springs kit, and seat the supplied preload spacer exactly where the instructions call for it. Reinstall the preload collar back to factory setting or slightly reduced if the kit specifies it.
Common mistake: skipping the spacer. Most tender spring swap kits run a shorter free length than stock, and a missing spacer leaves a gap that shows up as a clunk at full droop the first time you hit a dip.
“If you hear a clunk before the shock bottoms out, the tender spring is doing its job wrong, not right.”
6. Reinstall and torque to spec
Bolt the shock back onto the upper and lower mounts using the same hardware you pulled at teardown. Torque every bolt to the fastener's spec — don't just snug it down by feel.
Expected outcome: the shock reinstalled and ready to cycle by hand before you drive on it.
7. Cycle and test ride
Cycle the suspension by hand a few times to check for binding, then take a short, slow test ride over rough ground. You should feel small chatter smooth out immediately without the shock bottoming harder on bigger hits.
Common mistake: skipping the driveway shake-down and finding a clunk twenty miles into a dune run instead of in your garage.
Troubleshooting
| Problem | Likely cause | Fix |
|---|---|---|
| Clunk at full droop | Missing preload spacer | Pull the shock and reseat per kit instructions |
| Uneven ride height side to side | Mismatched preload collar settings | Back both collars to the same turn count |
| Coil binding under hard hits | Wrong seat-count kit installed | Verify 2-seat vs. 4-seat spec against your VIN |
| Squeak on light bumps | Dry contact between spring and spacer | Light grease on the spacer face, not the spring coils |
| Shock binds when compressing | Shaft misaligned in upper mount bushing | Loosen mount bolts and reseat before final torque |
Most of these show up in the first ten minutes of a test ride. If the clunk or bind is still there after rechecking spacer placement, pull the shock again — don't just crank the preload collar tighter and hope.
Tools and resources
- Torque wrench with metric sockets sized to your shock's mounting bolts
- Shock spanner wrench for adjustable preload collars
- A General XP tender spring swap kit if you're running a General XP 2 or 4-seat cage
- A clean bench and rags — dropped bushing sleeves are the most common reason a 90-minute job turns into a two-hour job
What to do next
Once the tender spring swap is done and the ride is smoothed out, most riders move to the cab next — sound and vibration show up more once the suspension stops masking it. R1 Industries covers that in its guide to UTV sound bars for RZR, Can-Am, and Talon builds, which walks through what actually holds up at trail speed in 2026.
FAQ
What does a tender spring kit actually do?
A tender spring kit replaces the small secondary spring on your shock that absorbs the first inch of travel over small bumps. R1 tender springs are built to compress smoothly instead of coil-binding, which is what makes stock UTVs feel harsh on washboard and chop.
Are r1 tender springs different from stock secondary springs?
Yes. Stock tender springs are built cheap and either bind almost immediately or barely compress. R1 tender springs use a longer, softer coil matched to your shock brand so small-bump travel actually gets absorbed instead of transmitted straight to the seat.
How long does a tender spring swap take?
Budget roughly an hour to ninety minutes per corner if it's your first swap, including jacking, shock removal, and reinstall. Experienced installers with the right tools cut that down considerably on the second and third corner.
Do I need new shocks to run a tender spring kit?
No. Tender spring kits install on your existing shock body and don't require new shocks or revalving. The kit swaps only the secondary spring and preload spacer, leaving your main spring rate untouched.
Will a tender spring kit change my ride height?
Some tender spring kits are built to add a modest lift alongside the ride quality improvement, so check the specific kit's listing for your model before ordering if ride height matters to your build.
Can I install a tender spring kit myself?
Most riders install a tender spring kit in their own garage with a floor jack, torque wrench, and shock spanner wrench. No welding or specialty shop tools are required, though a spring compressor helps on shocks that retain the tender spring under load.
How much preload should I run on a new tender spring?
Start at the factory setting or whatever the kit instructions specify, then adjust in small increments after a test ride. Too little preload causes clunk at full droop; too much defeats the softer ride you installed the kit for.
Is a tender spring swap worth it for dune riding?
Dune riding is mostly small, repetitive chop at speed, which is exactly the terrain tender springs are built to smooth out. Riders who spend most of their seat time on dunes or washboard notice the biggest difference after the swap.
One last thing
The tender spring is the cheapest, most overlooked upgrade in your entire suspension system. Riders spend real money on shock rebuilds and revalving to chase a smoother ride, when half the harshness they're feeling comes from a $0 part that's bound up and barely moving. Swap the tender spring first. If the ride still feels rough after that, then you know the main spring or the shock valving is the actual problem — not the small part nobody looks at.