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Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 3,500-lb Axle

Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 3,500-lb Axle

Item # RM-2450
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Retail:$655.00
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Trailer Leaf Spring Suspension
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Shipping Weight: 53 lbs
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Improve your towing experience with this shock absorbing upgrade kit for leaf spring trailer suspensions. Heavy-duty shocks reduce trailer bounce, chucking, and porpoising. Adjustable mounting brackets and hardware included. Fits 2-3/8" axles. Lowest Prices for the best trailer leaf spring suspension from Roadmaster. Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 3,500-lb Axle part number RM-2450 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Roadmaster Trailer Leaf Spring Suspension - RM-2450

  • Suspension Kits
  • Shock Absorbers
  • Round Axle - 2-3/8 Inch
  • Tandem Axle
  • Shocks
  • Roadmaster

Improve your towing experience with this shock absorbing upgrade kit for leaf spring trailer suspensions. Heavy-duty shocks reduce trailer bounce, chucking, and porpoising. Adjustable mounting brackets and hardware included. Fits 2-3/8" axles.


Features:

  • Heavy-duty gas shocks absorb road vibration to provide a more comfortable towing experience
    • Nitrogen-charged shock absorbers help to eliminate trailer bouncing, chucking, and porpoising
  • Adjustable mounting brackets allow the shocks to be positioned nearly vertically
    • Limits up-and-down motion of trailer on both compression and rebound
  • Shocks sit at an outward, 15-degree angle
    • Helps to control trailer sway by limiting lateral movement
    • Improves front-to-back, side-to-side, and up-and-down movement of your trailer
  • Bolt-on installation
    • Included tie plates with extension pieces replace your existing U-bolt plates
    • Upper brackets mount on trailer frame with included hardware
    • Shocks attach to tie plate extensions and to upper brackets to help dampen movement of axle


Specs:

  • Application: tandem-axle trailers with leaf spring suspensions
    • Axle size: 2-3/8" diameter (typical 3,500-lb axle)
  • Shock length:
    • Extended: 17-1/2"
    • Compressed: 11-1/2"
  • Quantity: 4 shocks
  • Limited Lifetime Warranty


This Comfort Ride suspension upgrade system greatly improves your towing experience. It serves as an add-on for your leaf spring suspension, and it provides a notably smoother ride, reducing chucking, axle roll-up, and suspension rebound. This means that you'll experience improved handling, even over potholes and uneven pavement. And the contents of your trailer will stay in place during travel.


Gas Shocks Absorb Road Vibration

While traditional leaf springs support your trailer to prevent bottoming out, they don't necessarily provide a comfortable ride. Due to the rigidity of the steel construction, leaf springs do a poor job of absorbing shock and bounce and limiting sway.


Roadmaster Comfort Ride shocks

Adding these shocks to your existing leaf spring suspension offers a better solution. Gas-powered springs inside of the sealed cylinders compress and extend as you drive. The compression and extension of the springs creates enough force to offset the amount of incoming force or vibration that occurs when you tow over rough or uneven terrain. The result is a more comfortable towing experience.


Comfort Ride Shock Absorbers installed

Typically, when shocks are installed on a trailer, they're positioned at a more horizontal angle. But this positioning doesn't compensate very well for the up-and-down movement of the trailer's suspension. However, Roadmaster's patented adjustable frame brackets are specifically designed to allow these shocks to be mounted at a nearly vertical angle. As a result, these shocks will have the leverage necessary to limit up-and-down motion during both compression and rebound.


Rigorous Testing Standards

The Comfort Ride shock absorber system has endured rigorous testing to ensure its durability and longevity. This testing includes computerized Finite Element Analysis, which establishes guidelines to ensure superior product quality and safety. Roadmaster also tested these shock absorbers at the Navistar Proving Grounds, a private test facility that provides real-world handling and safety testing. The result is a safe, long-lasting product that you can trust.


Installation

Installation of the Comfort Ride system is fairly straightforward.


The included tie plates replace your existing U-bolt tie plates. You will need to retain your existing U-bolts and nuts for installation. Once the tie plates are installed, bolt the upper mounting brackets to your trailer's frame with the included hardware. Some drilling is required when mounting the brackets to the frame. Finally, attach the shocks between the tie plates and the frame brackets.



2450 Roadmaster Comfort Ride Shock Absorbers - 2-3/8" Axles

Installation Details RM-2450 Installation instructionsAlternate Instructions RM-2450 Installation instructions




Customer Reviews

Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers - 3,500-lb Axle - RM-2450

Average Customer Rating:  4.9 out of 5 stars   (115 Customer Reviews)

Improve your towing experience with this shock absorbing upgrade kit for leaf spring trailer suspensions. Heavy-duty shocks reduce trailer bounce, chucking, and porpoising. Adjustable mounting brackets and hardware included. Fits 2-3/8" axles.

by:

We bought a new Grand Design 22 foot Travel Trailer and Ford Expedition Tow Vehicle. Even after we installed a Curt Trunnion Bar Equalizer Hitch, the trailer bucking was unbearable for long trips. It was so bad we were ready to sell the whole rig. The suspension of all travel trailers is sub-standard.
We bought the Roadmaster RM-2450 Shock absorber kit and installed it ourselves. It made a WORLD OF DIFFERENCE in the ride! However, the installation was not easy for a 76 year old man. Thanks to a neighbor with a flat paved driveway and an extensive tool inventory, I got it done. You need pre-planning and high jack stands. Read the instructions and view some online videos before committing. Verify that there are no gas or water pipes next to the trailer frames.
Determining the location of the upper shock frame bracket is tricky. This measurement sets the angle of the shock absorber, and has to be done BEFORE you lift the trailer and remove the wheels! You have to have the trailer loaded, the wheels on the ground and the tow vehicle connected. Then install one shock absorber from the bottom up and measure where the upper bracket sets on the frame. Then you can disconnect and lift the trailer up on jack stands and drill the frame holes. I was lucky that I was close to the IDEAL 35 degree angle on my trailer. I don't know what you would do if you are outside the 25 to 40 degree allowable range.
The instructions say you have to get 12" long drill bits to drill into the bottom of the frame. There's not enough clearance to insert a standard drill between the springs and frame. Pushing the drill up overhead, and having the bit tight to the springs makes it almost impossible to get the holes straight. So when you drive the self tapping bolts into the holes it is very easy to strip them. A better solution is to have a low profile angle drill. Otherwise you'll be welding the brackets or glueing bolts.
We also installed heavy duty shackles, wet bolts and bronze bushings while the trailer was up on the jack stands. You have to refer to other reviews for that. The Trailer Mfg. stock components are junk.


Comments
Great. We’ve towed all over the country about 13,000 miles, and we’re still pleased with the ride.
Roger - 05/23/2021


by:

Thank you for asking for a 1 year review as I never do them without enough test time.
I have made several trips into western VA and West VA so have used the mountains and found it made a big difference in stability and bounce as advertised. No fault of the product but had I known I would have changed axles to next load level higher and kit to match. Instructions were pretty good, it does require some drilling through 3/16 steel 9/16" holes so having proper tools for job is essential. I got some trailer jack stands from [nationwide retailer] they provided safety at a reasonable cost. I highly recommend them.


Comments
Absolutely great I couldn’t be more pleased
Rich D - 04/20/2021


by:

One of the best things I’ve installed on my travel trailer. They smoothed out the ride and removed the sway from my trailer. Every travel trailer made should have these installed on them at the factory.




by:

Worked as advertised. Good product




by:

I received the RoadmasterComfort ice Shock Kit today and have not had the opportunity to install the the kit at this time. However, upon opening the box of parts, I was impressed by the quality of the materials provided in the kit. That is a grand start, for good review of the Roadmaster Kit.

Will provide more review once installed and tested.

Thanks for the expedient shipment of the kit and the follow-up.




by:

Installation was as shown on videos Directions were clear and all parts were included and well packaged. I need to move the gray water drain line with being all plastic was not a problem. I’ve only pulled the trailer about 5 miles since the installation I believe it’s made a large difference in the ride in the tow vehicle and the sway and handling of the trailer. The only negative I found is the shock bolts bolts are metric and the assembly bolts are SAE easy to confuse a half inch self locking nut with a 12 mm. Ruined 1/2 inch nut requiring a trip to the hardware store. A good half inch drive impact wrench is a huge labor saver and putting the 32 self tapping bolts into the trailer frame.




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Real nice




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Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


The Roadmaster Comfort Ride Shock Absorber kit on our Forest River Surveyor travel trailer was a great upgrade on our travels on rural highways and areas with wind. On our trip last fall from the Oregon Coast to Northern Idaho was a good test of this system and made for more relaxed driving! Should be installed at the factory!




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Excellent product! Absolutely TRANSFORMED my towing experience! Installed on a 2017 Open Range 310BHS travel trailer. Approximately #10,500 loaded. Trailer doesnt bounce or jolt over the road. Ride is substantially bettter. System is tough, thick, and seems it will last. Instructions are pretty clear, and all tooling neede is pretty basic. I reccommend a digital inclinometer to be able to set your shock angles precisely. They're cheap on [online]. I reccommend this kit to every single person who has the same bouncing issue. Could not be happier with the purchase!




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Installation Review (will update after road test) Great tutorial video. Highly recommend a quality bolt/nut loosening solution. Makes a big difference. Rented an angle drill for the top bracket 5/16th" holes due to low clearance (I ended up buying one it was so useful). Job went smoothly. I wouldn't cut your underbelly until after the install. I may not cut mine at all. Top of shock pushes against it but that shouldn't cause a problem. I added a number of photos, to include the solvent and jack. Top notch company with high quality merchandise.




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Along with the new springs....everything works as advertised. Well satisfied. No complaints.
I had to modify the one set of shock brackets to fit, as I have raised the trailer 5 inches
to match up with the 4 inch raised truck.
Otherwise...no swaying....no bouncing........no problems.
Thanks etrailer for your help.


Comments
Great. On a 32 ft. WildCat fifth wheel..No problems. In the driveway, I installed the Shock system, heavier springs. I had to modify the shock-to-frame brackets, as the trailer has been raised 5 inches. Along with the MorRyde Stabilizers the trailer tows like a dream. Be sure to have the wet bolt grease nipples pointing out to the side of the unit for easier access. Next project will be to replace the scary Magnetic Brakes with a hydraulic system. Thanks etrailer. Kudos to your wonderful support crew. It was just like calling my buddy next door.
Delta D - 08/02/2021


by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Product came with good instructions and installed exactly as advertised. Haven’t tested it on the road yet. I am going on a trip from Texas to New Mexico. The roads are terrible. Hope this makes the trip easier.




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


I would recommend this over other type upgrades. It may cost more but like the saying goes you get what you pay for. Install was not difficult.Installed on a 2015 Fuzion 325 toyhauler,towability plus road jarring much improved having ridden in trailer before and after,you can sit in the rear in your seat and not get thrown out.The other notable upgrade was the reese goose box fith wheel hitch,a real good upgrade. Tow vehicle 2016 RAM 3500 CAB CHASSIS 4×4 CUMMINS 6.7 DSL Bradfofd built Aluminum 4 box bed.




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


OMG! After having the trailer bottom out on the stock springs while traversing a RR crossing, this system has proven to be amazing. Returning from a VA campground I crossed multiple RR crossings and traveled some rough pavement. I found I had left a bottle of shower soap on the ledge in the shower! It was still there when I set up in my yard. Not possible with the stock suspension!


Comments
This was the best thing I could have done to make the 5th wheel experience a good one. Prior to installing failing to properly secure things in the trailer would not end well. After the install, items remained where they were last placed.
Bruce H - 04/11/2021


by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


So far so good on my 2015 Open Range 3X427BHS!

Overall, the old suspension system was just rusted and worn out and the tires were a maximum of 1" apart, which made me really nervous while pulling. It was tough to remove, but nothing a little WD-40 and some praying couldn't fix!

Installation was pretty straight forward using the included directions and [online video] University. Looking forward to seeing how it rides this weekend on our next trip.




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Just finished installing the Roadmaster shock system on my Momentum 398M tri-axle. The kit arrived well packaged and all items were included. The instructions that come with it are pretty straight forward and easy to understand. This would probably be a lot quicker install with some helping hands, but I did it by myself in about 6 hours. The hardest part of the entire setup is all of the overhead drilling, but with a little redneck ingenuity I was able to make that bearable. As far as this kit goes, the ordering process and the outstanding customer service from Angela W, etrailer.com rocks!! This could be the start of a wonderful relationship..


Comments
Still feel it is the best upgrade you can do short of going independent. Still a great product for the price.
Johnny - 04/19/2020


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Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


The system was installed on a 35', 10.5K lbs (GVW), bumper pull travel trailer. It tows fine and the bouncing has improved, but not as much as I had anticipated. Your advertisement indicated the ride was greatly improved but I find things still falling over/bouncing around. I would suggest the system improves the trailer handling as the axle placement, connect point, road condition etc also effect the trailer handling...




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Great addition to my camper. After being frustrated with broken leaf springs, stuff broken in the camper and being jarred from pot holes, I installed these shocks to help the ride. Easy to install (just takes time) and a great addition.




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


After 1 year we are still very pleased. Have about 5000 miles towing and it is a much better ride. Worth the money. Ride is much better. We did have it professionally installed. It's a pretty big project for a driveway mechanic


Comments
Continues to perform very well.
Philip - 04/09/2021


by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


I've installed this on a 5th wheel about 1 year ago and I have to say I've been very pleased with this purchase. While stuff in the trailer still gets out of place, it feels like it has improved the handling of the trailer over rough roads and during windy conditions. I've probably put about 5,000 miles on my trailer after installing this kit and have to say I have no regrets with this purchase.




by:

Review from a similar Comfort Ride in Trailer Leaf Spring Suspension


Love my RAS suspension. It did exactly what I was hoping for. Now I pull my trailer with NO rear end squat. It was really bad before I got the RAS heavy duty installed now no far fear with new setup.



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