Product Description

Comfort Ride Slipper Springs

Have you ever opened the door to your trailer after a road trip and looked into your own personal earthquake zone? Cabinet drawers wide open with their contents strewn over the floor? Pictures off the wall? Furniture that's 'walked'? If buying 50 bungee cords doesn't seem like much of a solution, then let Comfort Ride Slipper Springs solve what's actually causing the problem — outmoded components which transfer energy, rather than absorb it.

How are slipper springs different than my trailer's leaf springs? Travel trailers and fifth wheels use traditional 'eye to eye' leaf springs which haven't changed much for 100 years. If you look at a horse buggy from the late 1800's, it has leaf springs very much like your trailer. This is why your trailer is constantly bouncing and swaying. When your front tire hits a pot hole, the front leaf spring reacts to it and telegraphs that energy through the equalizer to the back leaf spring. Then, when the back tire hits the same pothole, it happens all over again in reverse. You basically get twice the bounce with every bump. Comfort Ride uses Slipper Springs to break the connection between the front and rear axle. Both the front and rear springs will slide forward and backward in response to road conditions WITHOUT transferring energy to the trailer. This movement absorbs and dissipates a significant amount of energy that would otherwise make your trailer ride rough, sway and tow poorly.

Did you know that on a typical highway, your trailer experiences the equivalent of a 3.2 magnitude earthquake? It is shocking how much force is relayed from the road to the trailer. Forces that twist and flex the frame causing brittle roof seams to crack and leak water. Forces that cause sofas and stoves to vibrate out into the aisle. Forces that require you to remove loose belongings from shelving and walls each time before you tow. Comfort Ride ends this pre-towing ritual by absorbing the forces rather than transmitting them throughout the trailer or fifth wheel.

Stop the white-knuckling! Many trailers and fifth wheels can be a handful to tow. On poor roads, they can be downright scary. A major reason for this is the driver must constantly react to the forces the trailer is applying to the truck. Comfort Ride calms the energy from your trailer, resulting in a better ride and more control.

Improves your trailer life — Comfort Ride can absorb 80 percent of the forces that may create water leaks and damage your trailer over time. If you stop the twisting and flexing, you stop the cracking and breaking of room seams and sealants.

Reduces trailer maintenance — Comfort Ride Slipper Springs eliminate 10 of the 14 wear parts from a conventional trailer suspension. The remaining four parts are replaced with self lubricating bushings. This means less wear and tear, less maintenance and fewer repair bills.

Comfort Ride will significantly reduce the cause of these common symptoms:

Chucking — the truck is rocked forward and aft when the trailer goes over uneven pavement (dips, frost heaves and the infamous bridge expansion joints)

Axle roll-up — during braking, the trailer's rear tires are lifted enough to cause a loss in traction (and a rise in the driver's blood pressure). Axle roll-up is why your back axle tires occasionally lock up momentarily when stopping. The harder the stop, the more prevalent it becomes.

Suspension rebound — when one tire goes over an obstacle, the trailer tips sideways. After the tire clears the obstacle, the leaf springs (and the trailer with them) rebound like a pogo stick.

Although Comfort Ride Slipper Springs can be installed separately, they work best when combined with the Comfort Ride Shock System. When used together, on smooth roads you can expect up to a 50 percent reduction in induced road energy transmission into your RV, over cobblestones a 76 percent reduction, and over gravel roads a 94 percent reduction.

Kits include four slipper springs, patented slipper box, hardware, and detailed instructions. Each kit contains the components for a tandem axle trailer. To get the correct leaf spring capacity, you will need to know your trailer's axle weight rating.

The 2500-60 is a Slipper Spring system for a tandem axle trailer with 5,000 lb. rated axles*.
Installation instructions

The 2500-66 is a Slipper Spring system for a tandem axle trailer with 6,000 lb. rated axles*.
Installation instructions

The 2500-70 is a Slipper Spring system for a tandem axle trailer with 7,000 lb. rated axles*.
Installation instructions

The 2500-80 is a Slipper Spring system for a tandem axle trailer with 8,000 lb. rated axles*.
Installation instructions

*IMPORTANT!
Use a slipper spring kit that is rated higher than the loaded weight of the RV, regardless of the axle capacity. For example, if a trailer has two 7k axles (total of 14k), but its loaded weight is 14,400 lbs., then use the 8k kit instead for a total capacity of 16k lbs. Using springs rated less than the loaded trailer weight will result in non-warranty damage to the springs. For more information about which capacity springs are appropriate for your trailer, see frequently asked questions below.

Need a kit for a third axle on a triple axle trailer?
Add a Comfort Ride Shock Absorber system

Note: Not all components are made in the US.

Read what our customers say about this product...

“Prior to self-installing the Roadmaster slipper spring system with shock absorbers, we had pulled our RV 20,000 miles in about 32 states. Our first pull with the new system was 269 miles from Ohio to Indiana. It was not a long pull but it was the best 269 miles we have ever pulled. The suspension was absolutely everything it was advertised to be. It was outstanding.

My only regret is that I did not install the upgrade sooner."

—J. Matheny, Franklin, TN

Comfort Ride Slipper Spring System – FAQ

Q: What is the Comfort Ride Slipper Spring System?

A: The Comfort Ride Slipper Spring System is a complete trailer suspension upgrade that replaces the factory equalizer and leaf spring setup. It includes a slipper spring box, upgraded slipper-style leaf springs, and is designed to be used with Comfort Ride shock absorbers for optimal performance.

Q: Does installing lower-rated springs (e.g., 7K) void the warranty if the axle is rated higher (e.g., 8K)?

A: No. Our warranty is based on the actual load carried on the axle, not its maximum rating. As long as the spring’s rated capacity exceeds the real-world load, the system remains under warranty—even if the axle itself is rated higher.

Q: What happens if I install springs that are rated much higher than the load they carry?

A: Your trailer will ride harshly. Think of a 1-ton truck driving empty—it’s stiff and uncomfortable. Oversized springs won’t compress effectively under lighter loads, meaning the suspension can’t absorb road bumps. This results in a rougher ride and greater stress on the trailer’s frame, walls, and seams, potentially causing long-term damage. It also increases “push-pull” behavior, making it harder to maintain control between the lines. Ideally, choose the lowest-rated spring that still exceeds the maximum axle load. We recommend visiting a truck scale with your trailer fully loaded to determine real axle weights.

Q: Does this system work with fifth wheels?

A: Yes. Just remember that a portion of the fifth wheel’s weight (the pin weight) is carried by the truck, not the trailer’s axles. Therefore, choose springs based on the actual axle load, not the full trailer weight.

Q: For triple-axle trailers, why do I need to order a tandem axle kit and a third axle kit? Why not one all-in-one kit?

A: Weight and shipping constraints. A complete triple-axle kit weighs over 150 lbs and cannot be shipped via standard parcel services like UPS or FedEx. Shipping as freight would be costly. Even if shipped via UPS, handling a 170 lb box isn’t practical. Separating it into two manageable kits allows for standard shipping and easier handling.

Q: What if the trailer has an unusual hanger layout or offset mounts?

A: Some trailers use offset or boxed hangers that may not support a standard installation. In those cases, the installer may need to fabricate a new mounting surface or remove the factory hangers, which are sometimes riveted to the frame. These modifications require advanced fabrication skills. Always send photos to your dealer or installer in advance.

Q: Do I need to install the Comfort Ride shock absorbers as well?

A: Yes. The slipper spring system is designed to work with Roadmaster’s Comfort Ride shock absorbers. While installing the springs alone is an improvement, the combined system offers a significantly better ride and longer trailer life. If you can only install one, Roadmaster recommends prioritizing the shock system.

Q: What’s the main benefit of the Comfort Ride system?

A: It improves ride quality, reduces bounce, and absorbs road impact more effectively. When paired with Comfort Ride shocks, it delivers a dramatically smoother, safer towing experience and minimizes wear on both your trailer and tow vehicle.